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Tektronix TYPE CA, Instruction Manual, Page: 30 / 36

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Tektronix TYPE CA Instruction Manual Download Page 30

Resistors

 

(continued)

Tektronix

Ckt.

 No.

Part Number

Description

R4385

303-822

8.2

 k

1 W

R4386

303-822

8.2

 k

1 W

R4391

302-270

27

 

Ω

½ W

R4393

302-270

27 

Ω

½ W

R4395

308-062

3k

5

 W

R4397

306-153

15

 k

2

 W

S/N

 Range

WW

5%
5%

5%

Switches

Unwired 

Wired

SW3300

 Use 260-330

Slide

AC-DC

SW3310

*260-146 

*262-118

Rotary

VOLTS/CM A

101-25729

*260-146 *262-483

25730-up

SW3360

*260-148

Rotary

POLARITY

SW3380

*260-244

Rotary

MODE

SW4300

 Use 260-330

Slide

AC-DC

SW4310

*260-146 

* 

262-119

Rotary

VOLTS/CM

B

101-25729

*260-146 *262-484

25730-up

SW4360

*260-148

Rotary

POLARITY

Electron 

Tubes

V3323

154-014

6AK5

V3334

154-040

12AU6

V3354

154-040

12AU6

V3364

 |

V3374 

(

Use

 *157-059

6AU6

Selected pair.

Furnished

 as a unit.

V3375

154-039

12AT7

V3382

154-016

6AL5

V3384

154-039

12AT7

V3393

154-039

12AT7

V4323

154-014

6AK5

V4334

154-040

12AU6

V4354

154-040

12AU6

V4364

 

V4374

 

Use *157-059

6AU6

Selected

pair.

Furnished

 

as

 a unit.

V4383

154-039

12AT7

7-6

PARTS LIST — TYPE

 CA

Summary of Contents for TYPE CA

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

Page 2: ...requests for repairs and replace ment parts should be directed to the Tek tronix Field Office or Representative in your area This procedure will assure you the fastest possible service Please include...

Page 3: ...Type CA http manoman sqhill com...

Page 4: ...eristics Section 2 Operating Instructions Section 3 Circuit Description Section 4 Maintenance Section 5 Calibration Section 6 Accessories Section 7 Parts List and Schematic Diagrams AA Type CA ht p7 m...

Page 5: ...be used separately without electronic switching making the Type AMPLIFIER TRANSIENT RESPONSE Risetime Passband With Instrument Type INPUT SELECTOR switch in any position INPUT SELECTOR switch in eith...

Page 6: ...rnate sweeps ADDED ALGEBRAICALLY Both channels com bined at output A or B Amplifier Sensitivity Basic deflection factor 05 v cm ac or dc Nine calibrated sensitivities 05 v cm to 20 v cm accurate withi...

Page 7: ...t each channel conducts for about 5 sec and then is cut off while the other channel conducts for an equal time Now turn the MODE switch to the ALTERNATE position There are still two traces on the crt...

Page 8: ...the plug in unit has been in use for a period of time you will notice that the trace will change position as the VARIABLE control is rotated This is caused by tube aging and the resultant shift in op...

Page 9: ...Fig 2 I Functions of the Type CA front panel controls AA http manoman sqhill com Operating Instructions Type CA 2 3...

Page 10: ...e set for external triggering The external triggering signal should bear a definite time relationship to the displayed signals It is possible that the displayed waveform could end up being the 100 kc...

Page 11: ...thodes would act as a signal and cause the trace to shift position when the VARIABLE control is rotated The VARIABLE gain control establishes the amount of cathode coupling and thus allows the stage g...

Page 12: ...ther This alternately switches the amplifiers on and off The switching rate is now determined by the repetition rate of the sweep CHOPPED Turning the MODE switch to the CHOPPED position returns both g...

Page 13: ...nts COMPONENT REPLACEMENT The procedures for replacing most parts in the Type CA Unit are obvious Detailed instructions for their removal are therefore not required Other components however can best b...

Page 14: ...tip properly shaped and tinned When removing or replacing components mounted on the ceramic strips you will find that satisfactory results are obtained if you proceed in the manner outlined below 1 Us...

Page 15: ...istinct types of ceramic strips have been used in Tektronix instruments The earlier type mounted on the chassis by means of 2 56 bolts and nuts The later type is mounted with snap in plastic fittings...

Page 16: ...reverse side of the chassis Note Considerable force may be nec essary to push the mounting rods into the nylon collars Be sure that you apply this force to that area of ceramic strip directly above th...

Page 17: ...end of the step unless you are instructed to the contrary If a single control requires adjustment it can be adjusted in the applicable step of this procedure without performing other steps as well It...

Page 18: ...nite 15 650 16 infinite 12 Miscellaneous alignment tools See Fig 5 2 PROCEDURE Install the Type CA Unit in the oscilloscope Turn on all the test equipment and allow 15 minutes for it to warm up Set th...

Page 19: ...rconnecting plug to ground This voltage should be between 66 5 volts and 68 volts 6 Check for Gas and Microphonics Gas check With the input connectors grounded turn the AC DC switches from DC to AC an...

Page 20: ...ion Reset the plug in controls as follows MODE ALTERNATE POLARITY A and B NORMAL Connect a jumper from the CAL OUT con nector of A channel of the plug in Check for the correct deflection in each posit...

Page 21: ...4362 L4372 L4334 and L4354 for an optimum square comer with no overshoot on the square wave signal Set the MODE switch of the Type CA Unit to A ONLY and connect the Type 107 in the same manner as abov...

Page 22: ...GEBRAI CALLY and switch the POLARITY switch of A channel to INVERTED With the waveform positioned to the vertical system electrical center a cancellation of the signal within 1 cm should occur If the...

Page 23: ...Part removed ofter this serial number 000 000 Asterisk preceding Tektronix Part Number indicates rrianufactured by or for Tek tronix also reworked or checked components Mod w Simple replacement not re...

Page 24: ...rated as soon as available Therefore when ordering a replacement part it is important to supply the part number including any suffix instrument type serial number plus a modification number where appl...

Page 25: ...Cer Var 500 v 10 C3315F 281 519 47 f Cer Var 500 v 10 C3316A C3316B 281 027 7 3 f Tub Var 500 v C3316C 281 027 7 3 f Tub Var 500 v C3316E 283 539 250 f Mica 500 v 10 C3317At C3317B 281 027 7 3 f Tub...

Page 26: ...281 027 7 3 f Tub Var 500 v C4317C 281 027 7 3 f Tub Var 500 v C4317E 283 541 500 f Mica 500 v 10 C4318A Selected C4318B 281 027 7 3 f Tub Var 500 v C4318C 281 027 7 3 f Tub Var 500 v C4318E 283 540...

Page 27: ...47 W 101 14520 316 470 47 14521 up R3311C 309 003 500 k W Prec 1 R3311D 302 470 47 W X25730 up R3311E 309 014 1 meg W Prec 1 R3312C 309 010 750 k W Prec 1 R3312E 309 053 333 k W Prec 1 R3313C 309 111...

Page 28: ...1 20 k 10 W WW 5 1 pair matched R3366 312 590 6k 5 W WW 5 to 1 pair matched 1 of each other R3370 302 154 150 k W R3371 306 392 3 9 k 2 W R3372 302 470 47 W R3373 304 562 5 6 k 1 W R3374 301 303 30 k...

Page 29: ...up R4323 316 470 47 W X25730 up R4324 306 223 22 k 2 W R4332 302 270 27 W R4334 309 250 500 W Prec 1 R4337 309 132 5 6 k W Prec 1 R4338 Use 311 279 770 Var WW VARIABLE R4341 311 018 20 k 2 W Var DC B...

Page 30: ...ary POLARITY SW3380 260 244 Rotary MODE SW4300 Use 260 330 Slide AC DC SW4310 260 146 262 119 Rotary VOLTS CM B 101 25729 260 146 262 484 25730 up SW4360 260 148 Rotary POLARITY Electron Tubes V3323 1...

Page 31: ...ET TAPERED BARREL 510 601 GROMMET RUBBER 48 005 GROMMET RUBBER 48 004 KNOB LARGE BLACK HCOI E THRU 66 059 KNOB SMALL RLD HOLE PART WAY 66 0 1 KNOB SMALL BLACK HOLL PPRT WAY 66 0 KNOB SMALL BLACK HOLL...

Page 32: ...W 4 40 x FHS 211 023 SCREW 4 40 x 3 3 FHH 211 025 SCREW 4 40 x PAN HS WLLOCKWAHHER 211 033 SCREW 6 32 x 5 6 BHS 211 507 SCREW 6 32 x 5 16 FHS 100 CSK PHILLIPS 211 538 SCREW 8 32x2 RHS 212 014 SCREW 8...

Page 33: ...TCHES CLIP MTD SN 14025 up 124 093 TAG SN INSERT 334 679 TUBING PLASTIC INSUL 20 GREEN 162 520 TURRET SOCKET ASS Y SN 101 14024 123 007 WASHER STEEL 8S x x 032 210 804 WASHER FIBER 10 210 812 WASHER S...

Page 34: ...ANNEL A PARTS SHOWN WITHOUT VALUES ARE SELECTED COMPONENTS SEE PARTS LIST SEE PARTS LIST FOR EARLIER VALUES AND S N CHANGES OF PARTS MARRED WITH RED TINT BLOCRS _ L 10 5 si TYPE CA ATTENUATION NETWORK...

Page 35: ...R4311E TYPE CA A VOLTS CM B BOTTOM VIEW...

Page 36: ...IT VOLTAGES WERE OBTAINED WITH A 20 000 V VOM ALL READINGS ARE IN VOLTS VOLTAGE AMPLITUDE MEASUREMENTS AS SHOWN ARE NOT ABSOLUTE THEY MAY VARY BETWEEN INSTRUMENTS AS WELL AS WITHIN THE INSTRUMENT ITSE...

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