Tektronix 1S1 Instruction Manual Download

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M A N U F A C T U R E R S O F C A T H O D E - R A Y O S C I L L O S C O P E S

INSTRUCTION

MANUAL

TYPE

1S1

SAMPLING UNIT

Summary of Contents for 1S1

Page 1: ...MANUFACTURERS OF CATHODE RAY OSCILLOSCOPES INSTRUCTION MANUAL TYPE 1S1 SAMPLING UNIT ...

Page 2: ...INSTRUCTION MANUAL Serial Number ______________ Tektronix Inc S W Millikan W ay P O Box 500 Beaverton Oregon 97005 Phone 644 0161 Cables Tektronix 070 0475 00 TYPE 1S1 SAMPLING UNIT ...

Page 3: ...Type 1S1 ...

Page 4: ...Type 1S1 ...

Page 5: ...Type 1S1 Type 1S1 Sampling Unit ...

Page 6: ...pe 1S1 and the display oscilloscope real time sweep and triggering are utilized See the Operating Instructions for use of the real time sampling technique The following characteristics indicated by footnote 1 apply over an ambient temperature range of 0 C to 50 C Warm up time for the given accuracy is 20 minutes VERTICAL SYSTEM Risetime 350 psec or less measured between the 10 and 90 amplitude lev...

Page 7: ... Using the magnifier the fastest calibrated sweep rate is 100 psec cm An uncalibrated Time Cm VARIABLE control provides sweep rates between the calibrated steps increasing the sweep speed up to at least 3 times the calibrated speed1 and extending the fastest magnified rate to about 33 psec cm Equivalent Sweep Rate Accuracy Within 3 of the rate indicated by the TIME CM switch with the VARIABLE cont...

Page 8: ...ing Jitter Low Amplitude 200 psec or less on a 2 nsec duration pulse of 40 mv ampli tude for internal triggering or 7 mv amplitude for external triggering 1 200 psec or less on a 1 Gc sine wave of 50 mv amplitude for internal triggering or 8mv amplitude for external trigger ing 1 5 nsec or less on a 10 Mc sine wave of 50 mv amplitude for internal triggering or 8 mv amplitude for external trigger i...

Page 9: ...NOTES ...

Page 10: ...ounted oscilloscope If the oscilloscope is operating properly the Type 1S1 should remain within the operating specifications given in Section 1 For checking circuits or for adjusting horizontal circuit controls the Type 1S1 can be operated on either a rigid extension or a flexible extension cable For normal opera tion however the unit should be installed directly in the oscilloscope Cooling The fa...

Page 11: ...Operating Instructions Type 1S1 2 2 Fig 2 1 Front panel controls and connectors ...

Page 12: ...ut connector Also selects either posi tive going or negative going slope of triggering signal Disconnects triggering signal and permits free run op eration of triggering circuit when switch is set to FREE RUN position EXT TRIG Connector Permits application of external signal ac coupled for triggering sampling operation Primarily for use with small amplitude trig gering signals from 5 mv to 200 mv ...

Page 13: ... by EXT HORIZ ATTEN control and equivalent time sweep rate of dis play is set by TIME CM control Deflection factor is adjustable from 1 volt cm to more than 16 volts cm HORIZ OUTPUT Jack Provides output waveform for driving hori zontal deflection of display oscilloscope Connection is made through oscilloscope External Horizontal Input jack Output amplitude through 10k ohms is 1 volt cm therefore t...

Page 14: ...al Horizontal Input Variable control for a compromise setting 16 Remove the patch cord from the Calibrator Output connector and reconnect it between the Type 1S1 HORIZ OUTPUT jack and the oscilloscope External Horizontal In put jack 17 With the oscilloscope Horizontal Position control position the start of the trace at the left edge of the graticule 18 Before making any accurate voltage measuremen...

Page 15: ...EXT HORIZ position 38 Adjust the Type 1S1 EXT HORIZ ATTEN control for a horizontal deflection of about 10cm Notice that in this mode similar to manual scan the external horizontal in put voltage determines the crt spot position but the Type 1S1 TIME CM switch still determines the equivalent time sweep rate of the display Since the external voltage merely scans the display the sawtooth voltage scan...

Page 16: ...range 76 Turn the DC OFFSET control fully counterclockwise then fully clockwise Notice that the positioning capability of the control is more than 5cm representing 1 volt at this 200mv cm deflection factor 77 Set the mVOLTS CM switch to 20 78 Turn the DC OFFSET control and notice that the dis play positioning capability has increased since at this de flection factor the 1 volt offset provides 50 c...

Page 17: ...CM switch is turned from one position to another adjust the attenuator balance as follows 1 First check and adjust the smoothing balance as de scribed above 2 Set the DC OFFSET control to zero volts by monitoring the OFFSET OUTPUT jack with a high impedance voltmeter or a dc coupled test oscilloscope Another method of setting the dc offset to zero volts is by moving the patch cord con nector from ...

Page 18: ...olerance is 3 accuracy of the check with the oscilloscope calibrator will be only within about 4 unless the amplitude error is known The following procedure is suggested for use of the 0 1 V Into 50 calibrator signal 1 Set the TIME CM switch to 50 µsec 2 Connect the oscilloscope calibrator directly to the Type 1S1 SIGNAL IN connector through an adapter and a coax cable 3 Set the calibrator to the ...

Page 19: ...d signal deteriorates approximately in proportion to the square of the length of the cable As an illustration a 500 psec rise time would be increased to 1000psec 100 increase by a length of cable with a risetime of about 867 psec From Fig 2 6 it is seen that approximately 10 feet 15 nsec of RG 58A U 25 feet 37 5 nsec of RG 8A U or 115 feet 137 nsec of Spir o line would cause this amount of risetim...

Page 20: ...s not equal that seen from the other end A signal applied from the lower imped ance source Z1 encounters a voltage attenuation A1 that may be determined as follows Since iR1 iZ2 1 2 1 R E E 2 2 Z E Therefore 2 1 1 1 2 1 2 1 1 A Z R E E A A signal applied from the higher impedance source Z2 will encounter a greater voltage attenuation A2 that may be determined similarly Since iR1 iR2 iz1 1 1 2 R E ...

Page 21: ... input resistance and low capacitive loading at moderately high frequencies Dynamic characteristic data is given in the probe instruction manual Built in Probes Another satisfactory method of coupling fractional nanosecond signals from within a circuit is to de sign the circuit with a built in 50 ohm output terminal With this method the circuit can be monitored without being disturbed When the cir...

Page 22: ...the input signal starts approximately 4nsec on the 500nS ramp before the triggering signal reaches the sampling gate Minimum delay is greater on the slower time position ranges External Triggering When the TRIGGER SOURCE switch is set to either EXT or EXT the signal applied to the front panel EXT TRIG connector is applied to the trigger circuit For the crt display to be meaningful this triggering ...

Page 23: ... or from the same signal that is applied to the vertical input Several types of connecting devices are available for con necting the triggering signal to the Type 1S1 These include attenuator probes voltage or current pickoff devices T con nectors and coaxial cables Some of these are suggested in Table 2 2 Be sure the amplitude of the triggering sig nal does not exceed the limits given above under...

Page 24: ... 8mv 200mv Tektronix Part Numbers of Suggested Connecting Devices CT 3 Current Takeoff 017 0060 00 VPA Voltage Pickoff 017 0073 00 2 nsec Coax Cable GR 017 0505 00 5 nsec Coax Cable GR 017 0502 00 10 nsec Coax Cable GR 017 0501 00 50 Coax Cable BNC 012 0057 00 P6032 Cathode Follower Probe 010 0108 00 P6034 10X Probe GR 010 0110 00 P6035 100X Probe GR 010 0111 00 50 Coupling Capacitor GR 017 0028 0...

Page 25: ... All other time position ranges have enough positioning capability to overcome the time shift produced by the delay line Triggering Controls Operation of the triggering controls depends on the frequency or repetition rate and the waveshape of the input triggering signal Table 2 3 outlines the use of the TRIGGER SENSITIVITY and RECOVERY TIME controls with the TRIG GER SOURCE switch set to INT or EX...

Page 26: ...he TRIGGER SOURCE switch is set to the INT or EXT position the input triggering signal is inverted prior to being connected to the trigger circuit In this case nega tive going pulse signals are changed to positive going sig nals then the triggering operation is the same as previously described and trigger recognitions are made on negative going excursions of the input signal The TRIGGER SENSITIVIT...

Page 27: ...ENSITIVITY control will then usually provide stable triggering Normal Triggered Operation On input triggering sig nals up to the repetition rate of the trigger circuit set by the TIME POSITION RANGE switch and the RECOVERY TIME control one trigger occurs for each cycle of the input trig gering signal when the TRIGGER SENSITIVITY control is set correctly This applies primarily to pulse triggering s...

Page 28: ...ore dense display in order to observe the detail of the waveform If smoothing is used for reducing display noise the dot density must be sufficiently high to allow the sampling cir cuits to follow the input signal closely If the shape of the displayed waveform changes as the SAMPLES CM con trol is turned the display is being modified by the com bination of smoothing and low dot density In this cas...

Page 29: ...screen Use of DC Offset The front panel DC OFFSET control may be used for can celling the effect of a dc voltage up to 1 volt in the pres ence of a low amplitude signal and may be used in con junction with the OFFSET OUTPUT jack for making accurate dc voltage measurements of the input waveform See Basic Applications later in this section for the use of dc offset for measuring voltages In addition ...

Page 30: ...unt of smoothing respect to equivalent time if the sampling rate is very close to a sub multiple of the signal frequency This type of display appears as a waveform of a much lower frequency than the input signal and is caused by sampling at such a slow rate that the samples are taken on widely separated portions of the signal Each sample represents the correct amplitude at the instant of sampling ...

Page 31: ...the scanning voltage The more slowly the display is scanned the denser the trace will be The EXT HORIZ ATTEN control adjusts the attenuation of an external ly applied deflection voltage The attenuation factor is variable from 1 volt cm with the control fully clock wise to greater than 16 volts cm with the control fully counterclockwise This permits full scanning of the crt with signals of from 10 ...

Page 32: ...ge level and ac coupling of the probes does not pass signals at these frequencies Triggering Sources Since the oscilloscope triggering circuitry is used the normal triggering sources available through the oscilloscope are used The triggering signal may be obtained either in ternally from the oscilloscope vertical amplifier or power line signal or externally through the oscilloscope external trigge...

Page 33: ... the trace off the crt screen To make a voltage difference measurement between two points on a display use the following procedure 1 Use the crt graticule to measure the vertical deflection in centimeters and fractions of centimeters between the two points on the display Be sure the mVolts Cm VARIABLE control is in CAL detent position 2 Multiply the amount of vertical deflection by the numerical s...

Page 34: ...most convenient for measuring the input signal can be select ed with the Type 1S1 TIME CM switch Set the sweep rate so the portion of the waveform containing the points of interest is spread over several cm of the graticule Time Interval Measurement Basic sweep accuracy of the Type 1S1 is 3 when the oscilloscope horizontal deflection factor is set to 1 volt cm Increased accuracy of time measuremen...

Page 35: ...ise near the center of the crt screen 3 Set the mVOLTS CM switch and mVolts Cm VARI ABLE control to produce some even number of centimeters of vertical deflection 4 Measure the horizontal distance between the 10 and 90 levels on the pulse rise Table 2 5 gives the vertical deflection measurement between the 10 and 90 levels TABLE 2 5 Risetime Deflection Guide Total Cm of Deflection Deflection Betwe...

Page 36: ...signal may be taken from one of the signals at the source or may be provided by some other time related signal The relative amplitude of the signals does not affect the phase measurement as long as each signal is vertically cen tered on the horizontal centerline However it is often easier to measure the phase difference if the display ampli tudes have been adjusted to be the same To measure the ph...

Page 37: ...es the error introduced into the measurement by the testing system will not be more than 1 and therefore can be considered negligible If however the risetime of the test device is less than 10 times as long as the combined risetime of the testing system the observed risetime will not give a true measure ment of the test device risetime In this case the actual risetime of the test device will have ...

Page 38: ...s level until a new sample is taken The horizontal sweep is produced by a staircase voltage that advances one step each time a sample is to be displayed One excursion of the input signal causes the trigger circuit to initiate one cycle of the sampling process and produce one dot of the display The cycle starts when the trigger circuit recognizes an excursion of the triggering signal and unclamps t...

Page 39: ...ntially the same sequence as the schematic diagrams VERTICAL SYSTEM The vertical system of the Type 1S1 uses a balanced bridge error correction type of sampling operation providing vertical deflection voltages for the display oscilloscope It has an internal trigger takeoff circuit which may be used to start the trigger circuit operation The input signal is delayed ap proximately 45 nsec after the ...

Page 40: ...athode follower to the vertical amplifier of the display oscilloscope A portion of the memory output signal is also sent back through a positive feedback loop to the sampling bridge Since the memory gate stops conducting immediately after the sample pulse has passed the feedback signal is not regenerated through the main signal path The signal in the feedback loop brings the charge on the input ci...

Page 41: ...r the snap off circuit the memory gate driver and the interdot blanking amplifier The detailed block diagram of the sampler is shown in Fig 3 4 Blocking Oscillator A positive going sampling drive pulse is received from the comparator circuit through C81 The pulse is inverted by transformer T80 and applied as a negative going pulse to the base of blocking oscillator Q80 Between pulses Q80 is turned...

Page 42: ... are reverse biased by a little more than 2 volts preventing passage of the input signal which is al ways connected through the delay line to the input of the bridge Reverse bias on the diodes is set by the BRIDGE VOLTS adjustment R22 Balance of the bridge voltage is ad justed by the BRIDGE BAL adjustment R30 so that no er ror correction signals are produced when there is no signal change of the i...

Page 43: ... of Q94 received through the memory gate circuit sets the transistor so that it will saturate easily As D90 is momentarily reverse biased by the negative go ing pulse from the blocking oscillator current which had been passing through D90 is switched to D92 This causes Q94 to saturate quickly producing the positive going mem ory gate driver pulse at the collector of Q94 This positive going gate pu...

Page 44: ...level When the next sampled pulse is received if there is a change at the input the memory capacitor will receive a new signal and will add or subtract the new signal from the residual charge depending on whether the new level is above or below the previous one Since grid current in V44B is very low and total leakage from the memory capacitor is very small there is essentially no change in the mem...

Page 45: ...The input triggering signal that starts the operation of the unit is received either from the trigger takeoff in the vertical system or from the front panel EXT TRIG connector The trigger circuit input recognizes either positive going or negative going triggering signals depending on the set ting of the TRIGGER SOURCE switch After recognizing an excursion of the input signal the trigger circuit pr...

Page 46: ...sitions or by connecting the signal through inverting transformer T410 with the switch at one of the positions A low frequency termination and a high frequency ground for the primary of T410 are provided by R412 R413 C412 and C413 The values of these components match the frequency re sponse characteristics of the transformer Both triggering sources are disconnected from the trigger circuit input w...

Page 47: ...f the circuit the fre quency of the free running multivibrator can be adjusted with the TRIGGER SENSITIVITY control to synchronize with the signal Each time D430 switches to its high state a small pulse is applied to D449 however D449 cannot be triggered until it has reached the proper bias level As the bias on D449 reaches the triggerable level the first of the small triggers from D430 that is ab...

Page 48: ...s a comparison voltage for controlling the amount of sampling delay with respect to the triggering event Transistors Q374 and Q384 are connected as an operational amplifier with the gain determined by the ratio of feedback resistor R377 to the input resistor selected by the TIME CM switch When the TIME CM switch is locked to the TIME POSITION RANGE switch a 1 2 5 5 magnification sequence occurs fo...

Page 49: ...on is made with the staircase inverter output level When the control tunnel diode in the trigger circuit re turns to its low voltage state halfway through the holdoff period the negative going pulse applied through C302 switches D304 to its high state causing Q324 to turn on and D315 to conduct again The timing capacitors quickly discharge making the circuit ready for its next rundown Comparator a...

Page 50: ...5 will turn off and reset the sweep gating multivibrator As the multivibrator resets the positive going voltage step at the collector of Q235 is applied to the retrace blanking amplifier and to the dis connect diodes D246 and D247 Diode D246 is forward biased by the positive voltage applied to its anode permitting the staircase capacitor to begin to discharge The resulting rise on the grid of V263...

Page 51: ...ttenuation to produce horizontal deflection factors of from 1 volt cm to more than 16 volts cm of display With the DISPLAY MODE switch at MAN position the operation is nearly the same as with the switch at EXT HORIZ except that the voltage applied to Q283 is a vari able dc voltage taken from divider R295 R293 and applied to attenuator R292 R280 The dc voltage can be adjusted from zero volts to mor...

Page 52: ...circuit providing a low impedance voltage source for the 139 volt supply that is able to provide the large current pulses required for sampling The action of this regulator circuit presents a constant current load on the decoupled 150 volt supply in the oscilloscope and eliminates voltage fluctuations that would be coupled to other circuits The 138 volt supply is connected to fixed current loads i...

Page 53: ...2 00 Visual Inspection The Type 1S1 should be inspected occasionally for pos sible defects such as damaged connectors improperly seated transistors or tubes frayed cable shields and heat damaged components The corrective procedures for most visible defects are obvious Particular care must be taken however if heat damaged parts are located Overheating usually indicates other trouble in the instrume...

Page 54: ...nt that was re moved 3 Insert the leads into the board and position the com ponent properly with respect to the board 4 Heat shunt each lead by holding it with long nosed pliers while applying a small amount of solder to the con nection 5 Clean the area around the solder connection with a flux removing solvent Be careful not to remove any infor mation printed on the efched wiring board Metal Termi...

Page 55: ...circuit numbers so they can be easily located on the diagram The sections of rotary switches are coded on the diagrams to indicate the physical positions of the switch contacts The sections are numbered from the front panel to the rear of the assembly If two switches such as the TIME CM and TIME POSITION RANGE are mounted as a single unit a single sequence of numbers is used for the entire assembl...

Page 56: ...Maintenance Type 1S1 4 4 Fig 4 2 Basic test points used for troubleshooting the Type 1S1 A Horizontal system on the right side of the unit B vertical system on left side of unit ...

Page 57: ... con nector between the center conductor and the outer conductor chassis ground while the instrument power is turned off Resistance measured with an accurate bridge 0 5 should be 49 0 ohms 1 0 ohm c Check for voltages and waveforms with the instrument turned on Typical voltages and waveforms given on the schematic diagrams were obtained under the test conditions listed on the left page of the Samp...

Page 58: ...ope may also be useful for checking a transistor or tube that is suspected of being defective Before install ing a replacement be sure that the circuit voltages are not abnormal If these voltage are not checked the new com ponent may be damaged by a defective circuit Tunnel Diodes A dynamic tester such as a Type 575 Curve Tracer Oscilloscope can be used for checking the operation of a tunnel diode...

Page 59: ...Maintenance Type 1S1 4 7 Fig 4 3 Circuit component locations and wiring color code on etched wiring REGULATOR BOARD A front side B reverse side ...

Page 60: ...Maintenance Type 1S1 4 8 Fig 4 4A Circuit component locations on VERTICAL etched wiring board 1 Front side 2 reverse side ...

Page 61: ...Maintenance Type 1S1 4 9 Fig 4 4B Wiring color code on VERTICAL etched wiring board ...

Page 62: ...Maintenance Type 1S1 4 10 Fig 4 5A Circuit component locations on front side of HORIZONTAL etched wiring board ...

Page 63: ...Maintenance Type 1S1 4 11 Fig 4 5B Wiring color code on HORIZONTAL etched wiring board ...

Page 64: ...internal comparison voltage with Vc accuracy within 0 5 ac and dc vertical input coupling internal and external triggering capability A single vertical input channel is used 3 Time mark generator Tektronix Type 180A Minimum alternate requirements Marker outputs from 1 µsec to 50 µsec sine wave outputs of 5Mc 10Mc and 50Mc fre quency accuracy within 0 25 marker and sine wave am plitudes at least 40...

Page 65: ...Calibration Type 1S1 5 2 Fig 5 1 Recommended calibration equipment ...

Page 66: ...ctors Tektronix part number 017 00 00 21 Two 5X T attenuators with GR 50 ohm connectors Tektronix part number 017 0045 00 22 2X T attenuator with GR 50 ohm connectors Tektronix part number 017 0046 00 23 2X T attenuator with BNC connectors Tektronix part number 011 0069 00 24 Variable attenuator with GR 50 ohm connectors Tek tronix part number 067 0511 00 Fixed attenuators as re quired may be subs...

Page 67: ...ement with mVolts Cm VARIABLE control change offset at zero volts 17 Adjust Position Range Page 5 24 Trace centered with offset at zero volts and VERT POSI TION control midrange 18 Adjust Loop Gain Page 5 27 Unity loop gain with SMOOTHING control clockwise 2mm baseline shift with polarity reversal 19 Adjust Bridge Standoff Page 5 29 2 volts using a 20 nsec pulse 20 Adjust Risetime Page 5 30 350pse...

Page 68: ... quired for adjusting the calibration controls To make only the control adjustments without checking performance of the instrument perform only the Adjust steps and omit the Check steps The symbol is provided for con venience in locating the Adjust steps Any equipment connections or control settings that are changed during the omitted steps must be noted and performed if neces sary If any adjustme...

Page 69: ...before making any calibration checks or adjustments 9 Connect the 1X test probe to the vertical input con nector of the test oscilloscope 10 After 20 minutes warm up check the dc balance of the test oscilloscope Indicator Oscilloscope Stability both time bases Counterclockwise not Preset 1 Horizontal Display Ext X1 or Ext X10 Intensity Counterclockwise Amplitude Calibrator Off Crt Cathode Selector...

Page 70: ...oscilloscope trace at the horizontal centerline for a zero volt reference level c Set the test oscilloscope Input Coupling switch to Dc d Touch the tip of the 1X test probe to the 19 volt test point see Fig 5 4 e Set the Vc Range switch to 11 f Check that the trace is now within 1 cm of the test oscilloscope horizontal centerline representing a reading of 19 volts 0 5 volts g Adjust R658 19V CAL i...

Page 71: ...c Range 0 Input Coupling Ac Input Atten 1 Millivolts Cm 10 b Connect the tip of the 1X test probe to the 19 volt test point see Fig 5 4 Be sure to connect the test probe ground clip to chassis ground c Trigger the test oscilloscope and observe the ripple display d Vary the autotransformer output over the regulated voltage range of the indicator oscilloscope e g 105 volts to 125 volts e Check the d...

Page 72: ...Calibration Type 1S1 5 9 NOTES ...

Page 73: ... Clockwise RECOVERY TIME SYNC Indicator Oscilloscope Stability both time bases Counterclockwise not Preset Horizontal Display Ext X1 or Ext X10 Intensity Counterclockwise Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5mSec Time Cm ...

Page 74: ...ontrol to obtain approximately 10 2cm of horizontal deflection see Fig 5 8 Use the Horizontal Display switch position Ext X1 or Ext X10 that will permit this adjustment g Slowly turn the Type 1S1 TRIGGER SENSITIVITY con trol counterclockwise Fig 5 8 Typical crt display after adjusting Indicator oscilloscope Horiz Input Variable control h Check that the trace stops free running as the control is tu...

Page 75: ...12 Fig 5 10 Trigger circuit adjustments on right side of Type 1S1 Unit is positioned upside down on test bench Fig 5 11 Staircase and inverter adjustments on right side of Type 1S1 Unit is positioned upside down on test bench ...

Page 76: ... of R270 STAIRCASE DC LEVEL Fig 5 13 Typical test oscilloscope display for checking adjustment of R380 INVERTER DC ZERO f Trigger the test oscilloscope g Check for a dc level of zero volts at the bottom of the main portion of the waveform see Fig 5 12 h Adjust R270 STAIRCASE DC LEVEL if the display is not correct See Fig 5 11 for the location of R270 i Disconnect the probe from the test point 7 Ad...

Page 77: ...wise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Preset Horizontal Display Ext Horiz Input Intensity Normal brightness of dot Amplitude Calibrator 10 Volts Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5 mSe...

Page 78: ...oscope Cal Out connector to the Type 1S1 EXT HORIZ INPUT jack e With the test oscilloscope vertical Position control position the free running trace at the horizontal centerline of the test oscilloscope crt screen f Adjust the indicator oscilloscope Horizontal Position control to position the displayed dot on the 1 cm graticule line of the indicator oscilloscope crt screen g Set the test oscillosc...

Page 79: ...ORMAL TRIGGER SOURCE INT s Trigger the display with the Type 1S1 TRIGGER SEN SITIVITY control t Adjust the indicator oscilloscope Horizontal Position control to position the start of the display to the left edge of the graticule see Fig 5 17A u Adjust the Type 1S1 SAMPLES CM control for an ade quate display of the time mark signal see Fig 5 17B The dots in the baseline should be as close together ...

Page 80: ... the spike in the trailing edge of the waveform should be about 20 mv I cm down from the top of the pulse j Adjust R320 COMPARATOR LEVEL if the display is not as indicated See Fig 5 18 for the location of R320 k Remove the probe from the test point 10 Adjust 50 nS Ramp Timing a Leave the time mark generator connected to the Type 1S1 SIGNAL IN connector b Set the generator for a 50 Mc output signal...

Page 81: ...k the timing of the 50 nS fast ramp over the center Fig 5 20 Typical indicator oscilloscope display for checking the adjustment of C325 Fig 5 21 Bottom side of Type 1S1 showing location of C325 8 cm of the graticule Exactly two complete cycles of the waveform should traverse the 8 0 cm 0 08 cm h Adjust C325 if the display is not correct See Fig 5 21 for the location of C325 i Disconnect the sine w...

Page 82: ... NORMAL MANUAL SCAN EXT HORIZ ATTEN Clockwise TIME CM 10 nSEC Time Cm VARIABLE CAL TRIGGER SOURCE INT TRIGGER SENSITIVITY Centered RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Preset Horizontal Display Ext Horiz Input Intensity Normal brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Fig 5 22 Initial test equipment setup for s...

Page 83: ... to position the pulse rise at the 4 cm graticule line if the display is not as indicated See Fig 5 24 for the location of R370 g Turn off and remove the tunnel diode pulse generator 12 Adjust Sweep Length a Turn the TRIGGER SENSITIVITY control fully clockwise b Check that the length of the sweep is between 10 0 cm and 10 3 cm Fig 5 23 Typical indicator oscilloscope display for checking adjustment...

Page 84: ...tor adapter and clip lead adapter from the SIGNAL IN connector h Turn the Type 1S1 right side up and insert it into the indicator oscilloscope plug in compartment i Connect the patch cord from the Type 1S1 HORIZ OUTPUT jack to the indicator oscilloscope EXT HORIZ Input jack Do not change the horizontal deflection adjustment j Turn on the indicator oscilloscope and allow about 5 minutes for warm up...

Page 85: ...ckwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Preset Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 1mSec Time Cm V...

Page 86: ...110 f Reset the SMOOTHING control to NORM position fully clockwise 15 Adjust Bridge Balance a Connect the test probe to the Type 1S1 OFFSET OUT PUT jack You may wish to use a banana plug tip on the probe for this connection b Free run the test oscilIscope trace and set it for a zero volt dc reference level c Set the test oscilloscope Input Coupling switch to Dc d Adjust the Type 1S1 DC OFFSET cont...

Page 87: ... the indicator oscilloscope trace does not move more than about 0 2cm as the control is turned g Adjust the front panel VAR BAL screwdriver adjust control see Fig 5 28 if operation of the VARIABLE con trol is not correct h Set the mVolts Cm VARIABLE control to CAL position 17 Adjust Position Range a Leave the DC OFFSET control set for zero volts at the OFFSET OUTPUT jack b Center the Type 1S1 VERT...

Page 88: ...Calibration Type 1S1 5 25 NOTES ...

Page 89: ...SENSITIVITY Clockwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Pre set Horizontal Display Ext Horiz Input Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5 µSEC Time Cm Variable Cal...

Page 90: ... Pulse Output signal of the pretrigger pulse generator through a coax cable the variable attenuator and a 5X attenuator to the SIGNAL IN connector of the Type 1S1 The Type 111 Pretrigger Pulse Generator should have a 9 nsec charge line installed for an Output Pulse duration of 20 nsec 1 A modified Type 111 Pretrigger Pulse Generator 067 0517 00 is available to provide an automatic 2 trace pulse di...

Page 91: ...he point of maximum gain see Fig 5 32A C Maximum gain is observed as the greatest separation between the two displayed traces 3 Adjust C135 to set the loop gain at unity gain of 1 This is indicated by a straight line display of the lower trace see Fig 5 32B w Set the pretrigger pulse generator Output Polarity switch to x Set the Type 1S1 TRIGGER SOURCE switch to INT y Check for a waveform indicati...

Page 92: ...the pulse amplitude to the point where the baseline just started to rise j Check the test oscilloscope waveform for an amplitude of 2 volts or more 4 cm or more k If the pulse amplitude is less than 2 volts 1 Adjust the variable attenuator for a display ampli tude of 2 2 volts 4 4cm on the test oscilloscope screen 2 Adjust R22 BRIDGE VOLTS counterclockwise slowly until the baseline immediately fol...

Page 93: ...tput Polarity switch to s Leave the Type 1S1 TRIGGER SOURCE switch set to INT 20 Adjust Risetime a Disconnect the pretrigger pulse generator signal from the Type 1S1 SIGNAL IN connector but leave the connec tions and controls set as in step 17 If readjustment of rise time is required loop gain will also have to be readjusted Fig 5 35 Indicator oscilloscope waveforms for checking risetime of the Ty...

Page 94: ...c Turn the control counterclockwise to decrease risetime Do not decrease risetime below 330psec since this will adversely affect the transient response of the system See Fig 5 33 for the location of R85 2 Remove the pulse generator from the Type 1S1 SIGNAL IN connector 3 Reset the following Type 1S1 controls TIME CM 5 nSEC TRIGGER SOURCE INT mVolts Cm VARIABLE CAL 4 Readjust loop gain as described...

Page 95: ...NORMAL MANUALSCAN EXT HORIZ ATTEN Clockwise TIME CM 5µSEC Time Cm VARIABLE CAL TRIGGER SOURCE EXT TRIGGER SENSITIVITY Clockwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Pre set Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Fig 5 36 initial test equipment setup for ste...

Page 96: ...ach position from 100 to 2 and check the attenuator accuracy as indi cated in Table 5 1 The deflection factor should be within 3 of the amount indicated at each setting of the mVOLTS CM switch If it is not the VERT GAIN control may require slight readjustment 23 Check mVolts Cm Variable a Leave the 50 amplitude calibrator signals connected to the Type 1S1 b Set the Type 1S1 mVOLTS CM switch to 200...

Page 97: ...wise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Pre set Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5 mSEC Time Cm V...

Page 98: ...st oscilloscope display at the horizontal cen terline see Fig 5 40B k Set the test oscilloscope Vc Range switch to 1 1 l Check that the top of the waveform is within 0 3 cm of the horizontal centerline See Fig 5 40C This indicates an amplitude of 600 mv 3 at the Type 1S1 VERT OUT PUT jack or 200 mv per cm of display on the screen of the indicator oscilloscope m Remove the patch cord from the VERT ...

Page 99: ...and attenuator from the 50 amplitude calibrator and from the Type 1S1 SIGNAL IN and EXT TRIG connectors 26 Check Output DC Level a Install the 1X test probe on the test oscilloscope verti cal input b Reset the following test oscilloscope controls Vc Range 0 Input Atten 100 Comparison Voltage 6 700 Millivolts Cm 10 Input Coupling Gnd c Reset the following Type 1S1 controls TIME CM 50 nSEC TRIGGER S...

Page 100: ...Touch the test probe to the junction of D186 and D188 see Fig 5 42 m Check that the test oscilloscope trace is within 2 5 cm of the horizontal centerline indicating a dc voltage of 67 5 volts 2 5 volts n Remove the probe from the test point o Disconnect the 1X probe from the test oscilloscope vertical input NOTES ...

Page 101: ...ockwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Preset Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5 mSec Time Cm...

Page 102: ...ut connector b Adjust the test oscilloscope trace for a zero volt dc reference level c Touch the tip of the probe to the Type 1S1 OFFSET OUTPUT lack d Adjust the Type 1S1 DC OFFSET control to position the test oscilloscope trace at its horizontal centerline e Remove the test probe from the OFFSET OUTPUT jack f With the Type 1S1 VERT POSITION control position the indicator oscilloscope trace to the...

Page 103: ...lockwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Pre set Horizontal Display Ext Horiz Input Intensity Normal brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5 µsec Time ...

Page 104: ...nnector and turn off the gen erator e Set the mVolts Cm VARIABLE control to CAL posi tion 30 Check Loop Gain This check was made during the adjustment procedure and should be omitted here if a complete calibration pro cedure is being performed a Reset instrument controls as given under Fig 5 29 b Adjust the pretrigger pulse generator repetition rate to one half the repetition rate of the free runn...

Page 105: ... display with the TRIGGER SENSITIVITY control k Check the displayed pulse for an amplitude of 5cm 0 15cm with the SMOOTHING control fully counter clockwise See Fig 5 45D l Disconnect the pretrigger pulse generator signal 32 Check Low Frequency Response a Connect the square wave generator through a coax cable an adapter and a 5X attenuator to the Type 1S1 SIGNAL IN connector b Set the square wave g...

Page 106: ...Calibration Type 1S1 5 43 NOTES ...

Page 107: ...kwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Preset Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A Controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5 µsec Time Cm V...

Page 108: ... generator Variable control and the Type 1S1 TIME POSITION and FINE controls f Adjust the variable attenuator and the Type 1S1 VERT POSITION controls to obtain a display similar to that shown in Fig 5 49A Approximately 10 of the display dots should Fig 5 49 Typical indicator oscilloscope displays for setting up and measuring tangential noise amplitude overlap the graticule centerline Effective tra...

Page 109: ...to 1 Sec b Set the Type 1S1 mVOLTS CM switch to 200 c Temporarily disconnect the trigger signal cable from the attenuator on the Type 1S1 EXT TRIG connector d Touch the tip of the test probe to the center con ductor of the trigger cable e Trigger the test oscilloscope display It will be neces sary to position the bright trace off screen at the bottom of the crt and increase the test oscilloscope i...

Page 110: ...Calibration Type 1S1 5 47 NOTES ...

Page 111: ...NORMAL MANUAL SCAN EXT HORIZ ATTEN Clockwise TIME CM 5 µSEC Time Cm VARIABLE CAL TRIGGER SOURCE INT TRIGGER SENSITIVITY Clockwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Preset Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Fig 5 52 Initial test equipment setup for st...

Page 112: ...1 2 5 Ratio a Test equipment setup is shown in Fig 5 52 b Connect the time mark generator Marker Out signal through an adapter a coax and the variable attenuator to the Type 1S1 SIGNAL IN connector c Set the time mark generator for a 5 ftsec marker out put signal Fig 5 53 Typical indicator oscilloscope displays for checking timing and linearity Fig 5 54 Typical indicator oscilloscope displays for ...

Page 113: ... scribed in steps 8 c through 8 l h Set the Type 1S1 TIME CM switch to 5µSEC i Set the time mark generator for a 5 Mc sine wave output j Check the 1 2 5 ratio as indicated in Table 5 1 and Fig 5 54 Timing of each sweep rate should be within 1 0 08cm over the center 8cm of the graticule and tim ing of the 3 rates should be within 1 of each other Fig 5 56 Typical indicator Oscilloscope displays for ...

Page 114: ...check linearity as follows 1 Set the TIME POSITION RANGE switch to the posi tion indicated in column 1 of Table 5 4 2 Pull out on the MAGNIFIER knob and turn the TIME CM switch to the position indicated in column 2 3 Turn the TIME POSITION and FINE controls fully counterclockwise and check timing with the signal indicat ed in column 3 Timing should be within 3 0 24cm over 8 cm 4 Turn the TIME POSI...

Page 115: ... a display expansion of 3 1 or greater see Fig 5 57 g Return the VARIABLE control to CAL position fully counterclockwise detent 38 Check Single Sweep a Leave the time mark signal connected to the Type 1S1 b With the FINE control line up the 1 µsec time markers on the graticule lines c Set the Type 1S1 DISPLAY MODE switch to SINGLE SWEEP After completion of the sweep the trace will be held off d Pr...

Page 116: ...rols e Check the display for blanked areas of from 1 µsec to 5 µsec 0 5 cm to 2 5 cm between bright portions of the waveform see Fig 5 58A This is interdot blanking f Set the indicator oscilloscope Time Cm switch to 5 mSec g Check the display for a blanked area during the re trace portion of the Type 1S1 staircase generator cycle similar to that shown in Fig 5 58B h Turn the Type 1S1 DC OFFSET and...

Page 117: ...ckwise RECOVERY TIME Centered Indicator Oscilloscope Stability both time bases Counterclockwise not Pre set Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator 100 Volts Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 5 mSEC T...

Page 118: ...rsection of the horizontal centerline and the 1 cm vertical graticule line see Fig 5 60A i Set the test oscilloscope Vc Range switch to 11 j Turn the DC OFFSET control counterclockwise to re turn the test oscilloscope trace to its horizontal centerline k Turn the Type 1S1 VERT POSITION control counter clockwise to position the displayed dot at the horizontal centerline of the indicator oscilloscop...

Page 119: ...ed dot moves at least 10cm to the right as the control is turned see Fig 5 60C The dot should stop or disappear before it has moved 11 cm x Reset the DISPLAY MODE switch to NORMAL Fig 5 61 initial test equipment setup for steps 42 and 43 Type 1S1 TIME CM 10 µSEC Time Cm VARIABLE CAL mVOLTS CM 200 TRIGGER SOURCE INT MVolts Cm VARIABLE CAL TRIGGER SENSITIVITY Clockwise DC OFFSET Centered RECOVERY TI...

Page 120: ...e with each of the input trig gering signals given in Table 5 7 The SAMPLES CM con trol may be adjusted as required during the procedure a Connect the indicated input triggering signal to the SIGNAL IN connector and to the EXT TRIG connector through a T connector attenuators and coax cables as necessary see Fig 5 63 b Set the TRIG SOURCE and TIME CM switches as indi cated in the table c Set the mV...

Page 121: ...and FINE controls position the most vertical portion of the waveform between the 5 cm and 6 cm graticule lines see Fig 5 62 f Set the mVOLTS CM switch to the readout position in the table g Check the time jitter of the waveform as indicated by horizontal thickness of the trace Maximum jitter speci fications for properly triggered displays are given in the table h After completing all the checks di...

Page 122: ...OVERY TIME Counterclockwise not at SYNC Indicator Oscilloscope Stability both time bases Counterclockwise not Pre set Horizontal Display Ext Horiz Input Intensity Normal Brightness Amplitude Calibrator Off Crt Cathode Selector Chopped Blanking Test Oscilloscope Horizontal Display A Time Base A controls Trigger Slope Int Triggering Mode Ac Stability Clockwise Triggering Level Clockwise Time Cm 2 µs...

Page 123: ...WEEP SAMPLES CM MIN Clockwise b Set the TRIGGER SOURCE switch to EXT c Install the 10X probe on the vertical input of the test oscilloscope d Connect the test probe to the Type 1S1 HORIZ OUT PUT jack e Trigger the test oscilloscope display f Check the recovery time of the trigger circuit for each time position range as indicated in Table 5 8 with the RE COVERY TIME control set for minimum holdoff ...

Page 124: ...nk p pico or 10 12 dia diameter PHS pan head steel div division piv peak inverse voltage EMC electrolytic metal cased pIstc plastic EMT electroyltic metal tubular PMC paper metal cased ext external poly polystyrene f farad Prec precision F I focus and intensity PT paper tubular FHS flat head steel PTM paper or plastic tubular molded Fil HS fillister head steel RHS round head steel g or G giga or 1...

Page 125: ...Parts List Type 1S1 6 2 EXPLODED VIEW ...

Page 126: ...W set 6 32 x inch HSS 7 366 0138 00 213 0004 00 1 1 KNOB charcoal VERT POSITION knob includes SCREW set 6 32 x 3 16 inch HSS 8 366 0189 00 213 0020 00 1 1 KNOB red RECOVERY TIME knob includes SCREW set 6 32 x inch HSS 9 366 0175 00 213 0004 00 1 1 KNOB charcoal TRIGGER SENSITIVITY knob includes SCREW set 6 32 x 3 16 inch HSS 10 366 0189 00 213 0020 00 1 1 KNOB red CAL VARIABLE knob includes SCREW ...

Page 127: ...cludes SWITCH unwired DISPLAY MODE LOCKWASHER 400 OD x 261 inch ID NUT hex 32 x 5 16 inch mounting hardware not included w switch LOCKWASHER pot internal x inch WASHER 390 ID x 9 6 inch OD NUT hex 32 x inch 20 366 0038 00 213 0004 00 1 1 KNOB red CAL VARIABLE knob includes SCREW set 6 32 x 3 16 inch HSS 21 366 0318 00 213 0022 00 1 1 KNOB charcoal TIME CM each knob includes SCREW set 4 40 x 3 16 i...

Page 128: ...211 0004 00 210 0586 00 1 2 2 CONNECTOR 16 contact mounting hardware not included w connector SCREW 4 40 x inch BHS NUT keps 4 40 x inch 37 348 0031 00 3 CONNECTOR coax w nut mounting hardware not included w connector LUG solder inch 38 131 0206 00 210 0260 00 210 0559 00 1 1 1 CONNECTOR probe power mounting hardware not included w connector LUG solder NUT hex 7 16 28 x 9 16 inch 39 136 0140 00 21...

Page 129: ...OCKWASHER internal 6 LUG solder NUT hex 6 32 x inch NUT keps 6 32 x 5 16 inch 51 441 0616 00 211 0504 00 210 0457 00 1 3 6 CHASSIS power mounting hardware not included w chassis SCREW 6 32 x inch BHS NUT keps 6 32 x 5 16 inch 52 441 0617 00 211 0504 00 211 0538 00 210 0457 00 1 2 3 2 CHASSIS horizontal mounting hardware not included w chassis SCREW 6 32 x inch BHS SCREW 6 32 x 5 16 inch 100 CSK FH...

Page 130: ...RHS phillips 60 670 0078 00 388 0640 00 1 1 ASSEMBLY board VERTICAL See Ref 69 assembly includes BOARD etched circuit 61 131 0391 00 2 CONNECTOR male 62 136 0061 00 2 SOCKET 9 pin 63 136 0183 00 8 SOCKET transistor 3 pin 64 343 0088 00 1 CLAMP cable 65 344 0108 00 14 CLAMP diode 66 352 0017 00 361 0007 00 1 1 HOLDER nylon mounting hardware not included w holder alone SPACER nylon 67 384 0519 00 21...

Page 131: ... inch PHB phillips LOCKWASHER 6 split WASHER 6S x 5 16 inch 75 670 0080 00 388 0638 00 1 1 ASSEMBLY board REGULATOR assembly includes BOARD etched circuit 76 136 0183 00 3 SOCKET transistor 3 pin 77 344 0108 00 211 0504 00 211 0511 00 210 0055 00 210 0802 00 100 450 449 2 4 4 4 4 CLIP diode mounting hardware not included w assembly SCREW 6 32 x inch BHS SCREW 6 32 x inch PHS phillips LOCKWASHER 6 ...

Page 132: ... LUG solder 87 200 0365 00 1 COVER 88 358 0088 00 1 BUSHING 89 380 0035 00 1 HOUSING 90 132 0001 00 1 NUT coupling 91 132 0007 00 1 SNAP ring 92 131 0209 00 1 CONNECTOR inner conductor 93 132 0208 00 1 INSULATOR 94 132 0029 00 1 CONDUCTOR inner 95 132 0002 00 1 CONDUCTOR sleeve outer 96 210 0006 00 210 0561 00 1 2 mounting hardware not included w assembly LOCKWASHER NUT 6 32 x 3 16 inch 97 179 098...

Page 133: ...RIPTION 1 2 3 4 5 6 012 0039 00 017 0044 00 017 0078 00 017 0063 00 017 0064 00 017 0502 00 017 0502 00 070 0475 00 100 150 149 1 2 2 1 1 1 2 CORD patch banana 18 inches ATTENUATOR 50 10X ATTENUATOR 50 10X ADAPTER BNC to GR female ADAPTER BNC to GR male CABLE 50 5 nsec MANUAL instruction not shown ...

Page 134: ...C81 281 0523 00 100 pf Cer 350 v C82 283 0067 00 0 001 uf Cer 200 v 10 C83 283 0059 00 1 uf Cer 25 v C84 281 0573 00 11 pf Cer 10 C85 283 0067 00 0 001 uf Cer 200 v 10 C86 283 0079 00 0 01 uf Cer 250 v C87 281 0503 00 8 pf Cer 500 v 5 pf C88 283 0069 00 15 pf Cer 50 V C89 283 0069 00 15 pf Cer 50 v C93 283 0026 00 0 2 uf Cer 25 v C101 283 0026 00 0 2 uf Cer 25 v C110 283 0051 00 0 0033 uf Cer 100 ...

Page 135: ...33 uf Cer 100 v 5 C313 283 0081 00 0 1 uf Cer 25 v C315 283 0060 00 100 pf Cer 250 v 5 C325 281 0063 00 9 35 pf Cer Var C326A 0 5uf C326B 0 05 uf Timing Capacitor C326C 0 00495 uf C326D 295 0087 00 450 pf C330 283 0081 00 0 1 uf Cer 25 v C335 283 0004 00 0 02 uf Cer 150 v C342 283 0115 00 47 pf Cer 200 v 5 C357 283 0081 00 0 1 uf Cer 25 v C362 283 0000 00 0 001 uf Cer 500 v C377 283 0076 00 27 pf ...

Page 136: ...80 152 0071 00 Germanium ED 2007 D82 152 0071 00 Germanium ED 2007 D87 152 0115 00 GaAs Tek made D90 152 0071 00 Germanium ED 2007 D92 152 0185 00 Silicon Replaceable by 1N3605 D101 152 0034 00 Zener 1N753 0 4 w 6 2 v 5 D103 152 0071 00 Germanium ED 2007 D107 152 0071 00 Germanium ED 2007 D109 152 0185 00 Silicon Replaceable by 1N3605 D110 D112 152 0083 00 GaAs 1 pair Tek made D118 152 0107 00 Sil...

Page 137: ...00 Germanium D462 152 0008 00 Germanium D464 152 0008 00 Germanium D470 152 0008 00 Germanium D472 152 0185 00 Silicon Replaceable by 1N3605 D482 152 0185 00 Silicon Replaceable by 1N3605 D490 152 0008 00 Germanium D492 152 0008 00 Germanium D616 152 0185 00 Silicon Replaceable by 1N3605 D630 152 0066 00 Silicon 1N3194 D632 152 0066 00 Silicon 1N3194 D636 152 0185 00 Silicon Replaceable by 1N3605 ...

Page 138: ...76 0549 00 Core Ferrite L428 108 0170 01 0 5 µh L449 276 0543 00 Core Ferrite Transistors Q54 151 0134 00 Replaceable by 2N2905 Q64 151 0108 00 Replaceable by 2N2501 Q74 151 0151 00 Replaceable by 2N930 Q80 151 0083 00 Selected from 2N964 Q94 151 0063 00 2N2207 Q124 151 0151 00 Replaceable by 2N1930 Q133 151 0151 00 Replaceable by 2N930 Q153 151 0151 00 Replaceable by 2N930 Q225 151 0133 00 Select...

Page 139: ...istors Resistors are fixed composition 10 unless otherwise indicated R1 308 0224 00 2 45 k w WW 1 R4 317 0047 00 4 7 w 5 R5 317 0150 00 15 w 5 R7 321 0636 00 100 w Prec R8 321 0636 00 100 w Prec R13 315 0512 00 5 1 k w 5 R14 315 0223 00 22 k w 5 R16 323 0490 00 1 24 meg w Prec 1 R17 323 0474 00 845 k w Prec 1 R19 321 0305 00 14 7 k w Prec 1 R21 315 0512 00 5 1 k w 5 R22 311 0497 00 50 k Var Bridge...

Page 140: ...Prec 1 R64 323 0339 00 33 2 k w Prec 1 R66 321 0250 00 3 92 k w Prec 1 R67 321 0339 00 33 2 k w Prec 1 R68 315 0183 00 18k w 5 R69 315 0183 00 18 k w 5 R70 321 0342 00 35 7 k w Prec 1 R72 315 0472 00 4 7 k w 5 R74 315 0101 00 100 w 5 R76 315 0750 00 75 Selected nominal value R80 315 0510 00 51 w 5 R82 315 0471 00 470 w 5 R83 315 0100 00 10 w 5 R84 315 0390 00 39 w 5 R85 311 0323 00 1 5 k Var Snap ...

Page 141: ... 25 k w Prec R145F 321 0669 00 6 08 k w Prec R145G 321 0666 00 3 04 k w Prec R145H 321 0663 00 1 07 k w Prec R145K 321 0680 00 35 3 k w Prec R145L 321 0674 00 17 4 k w Prec R145N 321 0707 00 16 5 k w Prec R145P 321 0706 00 25 5 k w Prec R153 303 0433 00 43 k 1 w 5 R157 315 0201 00 200 w 5 R159 311 0529 00 2 5 k Var DC OFFSET 1 V R165 311 0538 00 7 k Var VARIABLE mVolts CM R167 301 0563 00 56 k w 5...

Page 142: ...5 R250 315 0510 00 51 w 5 R252 315 0101 00 100 w 5 R254 311 0535 00 20 k Var SAMPLES CM R255 315 0221 00 220 w 5 R256 321 0226 00 2 21 k w Prec 1 R258 315 0152 00 1 5 k w 5 R260 315 0183 00 18k w 5 R262 315 0390 00 39 w 5 R264 315 0101 00 98 w 5 R266 315 0101 00 99 w 5 R268 315 0101 00 100 w 5 R269 315 0103 00 10k w 5 R270 311 0462 00 1 k Var Staircase DC level R274 306 0184 00 180 k 2 w R276 315 ...

Page 143: ...0 w 5 R350 315 0122 00 1 2 k w 5 R352 315 0152 00 1 5 k w 5 R353 315 0332 00 3 3 k w 5 R354 315 0682 00 6 8 k w 5 R356 315 0102 00 1 k w 5 R357 315 0101 00 100 w 5 5k TIME POSITION R365A R356B 311 0530 00 50 k Var FINE R366 323 0407 00 169 k w Prec 1 R367 301 0165 00 1 6 meg w 5 R370 311 0465 00 100 k Var Delay Line R372 321 0401 00 147 k w Prec R375 321 0363 00 59 k w Prec R377 321 0261 00 5 11 k...

Page 144: ...5 0102 00 1 k w 5 R473 301 0823 00 82 k w 5 R475 311 0528 00 50 k Var Recovery Time R478 316 0825 00 8 2 meg w R480 316 0475 00 4 7 meg w R483 323 0339 00 33 2 k w Prec 1 R487 315 0102 00 1 k w 5 R489 315 0391 00 390 K2 w 5 R493 315 0123 00 12 k w 5 R495 321 0281 00 8 25 k w Prec 1 R497 322 0349 00 42 2 k w Prec 1 R499 315 0271 00 270 w 5 R500A 311 0527 00 2 k Var VARIABLE Time CM R500B 321 0193 0...

Page 145: ...18 k w 5 R653 315 0103 00 10k w 5 R656 323 0149 00 348 w Prec 1 R657 323 0195 00 1 05 k w Prec 1 R658 311 0442 00 250 Var 19V Cal R660 308 0267 00 7 5 k 5 w WW 5 R662 323 0122 00 182 w Prec 1 Switches Unwired Wired SW60 260 0686 00 262 0720 00 Rotary mVOLTS CM SW203 260 0689 00 Push Button START SW215 260 0687 00 262 0718 00 Rotary DISPLAY MODE SW254 311 0535 00 SWEEP OFF SW400 260 0685 00 262 071...

Page 146: ...Transformers Cont d Ckt No Tektronix Part No Description S N Range T340 120 0374 00 Toroid 2T 4T T410 120 0399 00 Toroid 8T T630 120 0400 00 Power Electron tubes V44 154 0413 00 8416 V183 154 0413 00 8416 V263 154 0417 00 8056 ...

Page 147: ......

Page 148: ...olt Type 1S1 Conditions Installation Connected to oscilloscope through 30 inch flexible extension Vertical Input Signal None External Triggering Signal None Type 1S1 Control Settings mVOLTS CM 200 mVoIts Crn VARIABLE CAL at detent VERT POSITION Centered DC OFFSET Zero volts at OFFSET OUTPUT TIME CM 50 nSEC Time Cm VARIABLE CAL at detent TIME POSITION RANGE 500 nS locked to TIME CM TIME POSITION Ce...

Page 149: ......

Page 150: ...l differences in component characteristics Waveform photographs were taken with a Tektronix Oscilloscope Camera System and Projected Graticule SCHEMATIC SYMBOLS Front panel title around name Clockwise control rotation Screwdriver adjustment Electrical limit of etched wiring board blue line Soller connection to etched wiring board black dot ...

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Page 158: ...uit and component improvements to our instruments as soon as they are developed and tested Sometimes due to printing and shipping require ments we can t get these changes immediately into printed manuals Hence your manual may contain new change information on following pages If it does not your manual is correct as printed ...

Page 159: ...SCHEMATIC CORRECTION ...

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