Tektronix 561A Instruction Manual Download Page 1

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INSTRUCTION

MANUAL

TYPE

561A

OSCILLOSCOPE

Tektronix, Inc.

S.W. Millikan Way

• P. O.

Box 500

• Beaverton, Oregon • Phone Ml 4-0161

• Cables: Tektronix

Tektronix

International

Terrassenweg 1A

• Zug, Switzerland • PH 042-49192

•

Cable:

Tekintag, Zug Switzerland • Telex

53.574

070-342

Summary of Contents for 561A

Page 1: ...SCILLOSCOPE Tektronix Inc S W Millikan Way P O Box 500 Beaverton Oregon Phone Ml 4 0161 Cables Tektronix Tektronix International A G Terrassenweg 1A Zug Switzerland PH 042 49192 Cable Tekintag Zug Swi...

Page 2: ...Section 5 Calibration Section 6 Accessories Section 7 Parts List and Schematics Copyright 1962 by Tektronix Inc Beaverton Oregon Printed in the United States of America All rights reserved Contents of...

Page 3: ...ioned above should be taken up with your Tektronix Field Engineer Tektronix repair and replacement part service is geared directly to the field there fore all requests for repairs and replace ment par...

Page 4: ...The Typo 561A Oscilloscope including the Type 3A1 Dual Trace Amplifier and the Type 383 Time Base Type 561 A http manoman sqhill com...

Page 5: ...ions on centerline Accelerating potential 3 5kv Usable viewing area 8 divisions vertical by 10 d vi sions horizontal Deflection plate sensitivities 18 5 to 20 5 volts per d vi sion vertical and 17 5 t...

Page 6: ...back panels of the Type 561A have con trols or switches that affect the display however the plug in units determine the major characteristics of the display Fig 2 1 Power transformer primary connecti...

Page 7: ...may have to be readjusted It is possible that only one plug in unit may be u ed When this is done one set of crt deflection plates will not be connected to a plug in The unconnected defleciion plates...

Page 8: ...ad current the potential at the grid of V634A will change a proportional amount Any change at the grid of V634A is amplified by V634A and Q624 and applied to the grid of V627 The re sulting grid chang...

Page 9: ...evel The HIGH VOLTAGE control R841 controls the output voltage by et ting the bias on V814B Deflection Signals Signals for the deflection plates are equal in amplitude but opposite in polarity push pu...

Page 10: ...n the Type 561 A If a spot does appear when both plug in units are removed reinsert each unit separately After warmup vary its POSITION control If the spot or trace cannot be returned to the approxima...

Page 11: ...ct the trouble then cheek the rest of the circuit by voltage and resistance measurements Voltages at various points throughout the instrument are indicated on the circuit diagrams ond in Figs 4 1 4 2...

Page 12: ...r of the voltage The second color indicates the second number ond the third color smallest sttipel indicates the multiplier The voltage is positive if the main color of the wire is white and negative...

Page 13: ...should return to normal 3 Collector of Q624 should be at about 12 volts 4 Excessive ripple on output C640A Col 6 or C640B open Check capacitors Ripple should be 5 mv peak to peak nominal 12 2 Volt Po...

Page 14: ...ctive V832 defective C830 C8J2 or C836 shorted R832 R835 R837 or R834 open Check voltage at plate of V832 test point 23 should be approximately 3 4 kv 3 High voltage outputs do not regulate with chan...

Page 15: ...the crt straight ut through the front panel being careful not to bend or break the crt neck pins The rubber gasket and implosion shield can be removed from the crt face after it is out of he instrumen...

Page 16: ...bond can be broken by e peated use of ordinary tin lead solder or by applying too much heat For this reason we recommend the use of solder containing about 3 silver and a wedge shaped soldering iron...

Page 17: ...pe measure the amount of ripple at the output of each supply The ripple will be twice the line frequency With plug in units inserted he nominal ripple is 5 millivolts on the 100 volt supply 10 millivo...

Page 18: ...C2 for the vertical system You can obtain this value by adjusting C760 Proceed as follows 1 Disconnect the power cord and isolate the oscilloscope from ground 2 Either plug a spare 24 pin connector in...

Page 19: ...ed Io mate other systems using dissimilar coaxial connectors TABLE 6 1 COAXIAL CONNECTOR ADAPTERS Description Part Number Component test fixture Intended for use with Type 130 L C Meter Fitted with UH...

Page 20: ...ABLE5 Description Part Number Two UHF plug connectors 50 SI nom 012 001 inal impedance 42 long RG 5BA U Two UHF plug connectors 75 fl nom inal impedance 42 long RG 59A U 012 002 Two UHF plug connector...

Page 21: ...17 044 307 064 5 XT Attenuator 1 watt Unit Element 0 7 045 307 065 2 X T Attenuator 1 wall Unit Element 017 046 307 066 50 fl End Line Termination 2 watts Unit Element 0 7 047 307 077 47 pf Input Capo...

Page 22: ...s in the range of 100 megacycles and below the attenuators listed in Table 6 7 will function properly when terminated with a termina tion resistor of the same value Termination resistors listed in Tab...

Page 23: ...ifier input terminals An attenuator probe can be used effectively on cither a stand ard 1 megohm input amplifier or a Sampling System 50 ohm signal amplifier TYPE P6026 Passive Probe The P6026 Passive...

Page 24: ...put voltage range Type P6033 Trigger Probe Not illustrated The P6033 Trigger Probe is a trigger coupling probe for external trig gering of Tektronix sampling system timing units The Type P6033 accepts...

Page 25: ...for use with any oscilloscope The system provides ac curate displays for observation and measurement of ac cur rent waveforms Current range extends from less than one milliampere to 15 amperes Use of...

Page 26: ...ut has a 1 3 shank 003 003 Walsco No 2519 insulotcd alignment tool This double ended tool is useful lor adiusting variable inductors 003 004 Walsco No 2503 insulated hexagonal wrench This tool is usef...

Page 27: ...cularly suitable for applications requiring extremely high writing rales Other lenses currently available from Tektronix may be used with the C 19 Binocular viewing of a 5 cm high by 10 cm wide screen...

Page 28: ...tics 10 volts 250 nsec duration half amplitude risetime about 4 nsec Pulse Delay Continuously variable from 30 to 250 nsec after pretrigger pulse Output Impedance 50 ohms Type 110 Pulse Generator and...

Page 29: ...Type 190B Constant Amplitude Signal Genera tor Type 1 80A Time Mark Generator Time Marks 1 5 10 50 100 500 scc 1 5 10 100 500 msec 1 5 seconds Three Sine Wave Frequencies 5 me 10 me and 50 me Six Tri...

Page 30: ...Maximum Output Voltage rtl v in terminated 93 ohm cable NOTICE If you have measurement situations that do not respond to the conventional attack call Tektronix at your local Field Office The composite...

Page 31: ...anteed minimum value T Turns h Henry TD Toroid K or k Kilohms or kilo 101 Tub Tubular M or meg Megohms or mega IO6 V Working volts DC Micro or 10 4 Var Variable m Milli or 10 w Watt n Nano or 10 9 w W...

Page 32: ...you the benefit of the latest circuit improvements developed in our engineer ing department It is therefore important when ordering parts to include the following information in your order Part numbe...

Page 33: ...pf x 10 pf EMC 350 v C644 290 133 2x125 pf EMC 350 v C650 285 510 01 zf MT 400 v C667 290 002 8 zf EMT 450 v C670 use 285 511 01 pf PTM 600 v C720 290 166 2 x 2000 Mf EMC 25 v C732 290 099 100 if EMT...

Page 34: ...19 1 Amp 3AG Slo Blo 234 v oper 50 60 cycle F720 159 023 2 Amp 3AG Slo Blo INDUCTORS I860 108 255 Beam Rotator on form 276 069 RESISTORS Resistors are fixed composition 10 unless otherwise indicated R...

Page 35: ...104 2 05 k A w Prec 1 R732 310 115 15k 1 w Prec 1 R734 302 334 330 k Aw R735 302 272 2 7 k A w R737 302 151 150 2 A w R744 308 231 220 2 3 w WW 5 R754 302 471 470 2 A w R759 302 104 100 k A w R770 30...

Page 36: ...R870 301 393 39 k y2 w 5 R871 311 315 20 k Var CAL AMPL R872 301 154 150 k y2w 5 R873 302 103 10k y2 R876 301 153 15k y2 5 R877 301 183 18k y2 w 5 R878 301 564 560 k y2 5 R879 301 124 120 k 2 W 5 R88...

Page 37: ...154 307 7233 V634 154 187 6DJ8 V654 154 022 6AU6 V667 154 020 6AS7G V674 154 022 6AU6 V800 154 167 6CZ5 V814 154 046 12BH7 V822 154 051 5642 V832 154 051 5642 V859 154 400 T561 CRT P31 Standard Phosph...

Page 38: ...41 446 Clamp cable 343 001 Clamp cable 343 005 Clamp tube top hat style 343 074 Clip deflection plate poly 344 047 Connector chassis mt 131 064 Connector chassis mt 24 contact female 131 148 Connector...

Page 39: ...w 2 wire holes 210 202 Lug solder SE 10 long 210 206 Lug solder pot plain 210 207 Lug solder 10 non locking 7 8 long 210 224 Nut hex 4 40 x 3 6 210 406 Nut hex 6 32 x 210 407 Nut hex 8 32 x 5 16 210 4...

Page 40: ...6 32 385 124 Rod 7i6x2 one end 3 e mounting hole 385 137 Rod spacer bar 5 u x 5 16 x 3 8 long 385 163 Screw 4 40 x 5 6 BHS 211 011 Screw 4 40 x y2 BHS 211 014 Screw 4 40x5 16 PHS w lockwasher 211 033...

Page 41: ...8 Socket STM8 molded 136 013 Socket STM9 136 014 Socket STM9G 136 015 Socket graticule light w ground lug 136 035 Socket light w 14 L red jewel assembly 136 047 Socket 4 pin transistor 136 095 Socket...

Page 42: ...032 210 803 Washer brass resistor centering 210 808 Washer 10 fiber 210 812 Washer steel 390 x x 020 210 840 Washer brass 5 32 x 2 x 16 thick 210 858 Washer rubber 2 x 1 b x 4 for fuse holder 210 873...

Page 43: ...2 2 V 16 6 TO PINS 1 2 RIGHT HAND PLUG IN CONNECTOR TO PINS l 2 LEFT HAND PLUG IN CONNECTOR SCALE 1LLUM TYPE 56IA OSCIU OSGOpE R64O graticule LITES 658 C64OA R 77 220K VG74 GAUG V6O9 OG3 42OV UNREG VG...

Page 44: ...0 Wh T801 TERMINALS CONNECTIONS...

Page 45: ...S TyPE 5GIA OSCILLOSCOPE 3OOV 7 IOO 30 106 VW R81G I K I J C 64I 047 R 840 1 2 M HIGH VOLTAGE R84i 2M 8 215 READINGS MAY VARY BECAUSE OF METER LOADING k R849 22K R 842 I2M 29 2000 R844C 5 M FOCUS C842...

Page 46: ...INED UNDER FOLLOWING CONDITIONS WAVEFORMS i CALIBRATOR VOLTAGE READINGS CALIBRATOR calibrator SECTIONS IR 2F ARE GROUNDED CONNECTOR PLUq TO FIT 9 PIN MINIATURE TUBE SOCKET BOOV V884A 2 BL8 R879 I2OK V...

Page 47: ...RIGHT HAND 07 2 7 62 TYPE 561A OSCILLOSCOPE PLUG IN CONNECTORS...

Page 48: ...it 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 manua...

Page 49: ...MOD 6860 Type 561A Tent S N 7860 Type RM561A Tent S N 5280 Change to Chassis Mtg Connectors BNC 131 279...

Page 50: ...210C 561A MOD 7052 Tent S N 7750 R835 Change to a series unit consisting of 3 5 6m 2w 10 306 565 and 2 6 8m 2w 10 306 685 R842 Change to a series unit consisting of 2 2 7m 2w 10 306 275 and 2 3 3m 2w...

Page 51: ...Tent S N 6630 47 As per schematic attached R655 Add 6 8m l 2w 302 685 R656 Add 500k Pot Comp Var 311 068 R675 Add 8 2m l 2w 302 825 R676 Add 500k Pot Comp Var 311 068 R730 Add 500k Pot Comp Var 311 06...

Page 52: ...RT 5O RT5I IOOV IOOV IOOV PLM I I 2 PART PWR SPLV DIAQ...

Page 53: ...TYPE 561A RM561A Mod 6936 561A Tent S N 7490 Mod 6936 RM561A Tent S N 5160 R733 R729 Change to 390k Add 82k As per schematic below l 2w l 2w 5 301 394 10 302 823 100V...

Page 54: ...00 050 0214 01 050 0214 02 or 050 0214 03 has been installed This provides instructions for replacing the old style T5032 glass CRT either internal or external graticule with the style T5611 ceramic...

Page 55: ...and loosen the clamp at the base of the CRT 4 Remove the CRT 5 Remove the CRT cushions 4 for Type 561A RM561A 567 RM567 or 6 Type 568 R568 from the inside of the CRT shield 6 Install the new CRT Compl...

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