Page 1 NSTRUCT ON MANUAL ektronix, Inc. .W. Millikan Way • P. O. Box 500 • Beaverton, Oregon • Phone Ml 4-0161 • Cables: Tektronix ektronix International A.G. Terrassenweg 1A • Zug, witzerland • PH. 042-49192 • Cable: Tekintag, Zug witzerland •...
Page 2: Warranty
WARRANTY All Tektronix instruments are warranted against defective materials and workman ship for one year. Tektronix transformers , manufactured in our own plant, are war ranted for the life of the instrument. Any questions with respect to the war ...
Page 3 CONTENTS Warranty ection Characteristics Operating Information ection Applications ection Circuit Description ection 4 Maintenance ection 5 Calibration Procedure ection 6 Accessories ection 7 Parts List and Circuit Diagrams ection 8 Type 545A...
Page 5 30 m c range. microseconds and approximately 1 2 seconds per centimter. The instrument can be operated with any Tektronix letter series plug-in unit to satisfy the requirements for virtually Calibrated sweep rates are typically within 1%, and in all any application.
Page 6 Line frequency — 50 to 60 cycles. Graticule Illumination — variable edge lighting. Output Waveforms Available Type 545A graticule markings — marked in 4 vertical and 10 horizontal 1 -centimeter divisions with 2-millimeter markings Delayed trigger pulse — approximately 5 volts in amplitude, on the centerlines.
Page 7 1 — Operator's Handbook. 1 — 3-conductor power cord, 161-010 The Type Q Plug-In Unit permits any Tektronix convertible oscilloscope such as the Type 545A to be operated with strain gages and other transducers. Excitation voltages for the strain gages and transducers are provided by the plug-in unit.
Page 8 Characteristics — Type 545A PLUG-IN PREAMPLIFIER CHARACTERI TIC FOR TYPE 545A O CILLO COPE CALIBRATED INPUT PLUG-IN TYPE DEFLECTION FACTOR BAND RI ETIME CAPACITANCE Type A d c to 14 m c Wide-Band 0.05 v/cm to 20 v/cm 18 nsec...
Page 9 Maximum resolution of the Type Z Unit is .005%. As a conventional preamplifier, the Type Z Unit offers a passband of d c to 13 m c for the 545A for signals that do not overscan the screen. The deflection factors are 0.05 volts/cm to 25 v/cm in 9 fixed, calibrated steps.
Page 10 NOTES...
Page 11 Connect the culty in understanding the operation of the Type 545A power cord to the rear of the instrument and to the power since the function of many controls is the same as the func line and place the POWER switch in the ON position.
Page 12 If the intensity of the beam is turned up too far, the phosphor on the face of the crt may be Three controls are used with the Type 545A Oscilloscope burned. The intensity of the beam should never be turned to allow you to position the trace to the desired point on up to the point where a halo forms around the spot.
Page 13 Operating nstructions — Type 545A low-frequency components. For applications where you are Use of Probes observing low-level signals, unshielded input leads are entirely unsatisfactory due to their tendency to pick up Occasionally connecting the input of an oscilloscope to stray signals which produce erroneous oscilloscope dis...
Page 14 Time Base B is selected when the switch is in posi the sweep must be synchronized with the input waveform. tion B. In the Type 545A Oscilloscope this is accomplished by starting (triggering) the sweep with the displayed wave form or with another waveform bearing a definite time relationship to the displayed waveform.
Page 15 Operating nstructions — Type 545A Selecting the Triggering Slope The horizontal sweep can be triggered on either the HOR ZONTAL SWEEP OF CRT BEAM rising ( + slope) or falling ( — slope) portion of the triggering waveform as determined by the position of the TRIGGER LOPE switch.
Page 16 Operating nstructions — Type 545A Fig. 2-6. The triggering signal is selected from three possible sources with the TR GGER SLOPE control. gering is used, it is impossible to select the point on the and amplitudes without adjusting any of the triggering con ...
Page 17 Operating nstructions — Type 545A Oscilloscope Display Trigger Slope Sweep Triggered on + Slope Oscilloscope Display Sweep Triggered on - Slope Fig. 2-7. Effects on the oscilloscope display produced by + and — settings if the TR GGER SLOPE control.
Page 18 Operating nstructions — Type 545A Trigger Slope Sweep Triggers On - Slope Trigger Slope Sweep Triggers Triggering Level O n + Slope Waveforms Obtained With The Triggering Level Control Set n The + Region On - Slope Fig. 2-8. Effects on the oscilloscope display produced by + and — settings of the TR GGER NG LEVEL control.
Page 19 Continue to adjust the TABILITY control until a stable display is obtained. With the Type 545A Oscilloscope the start of the hori zontal sweep can be delayed for a period of from 1 micro Although the synchronization signal source is selected...
Page 20 The delayed sweep feature of the Type 545A Oscilloscope Time Base A TIME/CM controls. can be used in a number of special applications to increase the versatility of the instrument.
Page 21: Delayed Trigger
Operating nstructions — Type 545A setting to the Time Base A TIME/CM control setting. For example, if the Time Base B TIME/CM OR DELAY TIME ‘ B ’ NTENS F ED BY ‘ A ’ SWEEP PRESENTAT ON switch is set at 1 MILLI EC and the Time Base A TIME/CM switch is set at 1 μ...
Page 22: Single Sweep
Sweep Magnifier to use a single-sweep presentation. The sweep magnifier allows you to expand any two- The Type 545A Oscilloscope permits you to obtain a centimeter portion of the displayed waveform to the full single-sweep presentation and to eliminate all subsequent ten-centimeter width of the graticule.
Page 23: Ntensity Modulation
TRACE CHOPPED BLANKING position. time per centimeter must be used for all measurements of time. ntensity Modulation The crt display of the Type 545A Oscilloscope can be Amplitude Calibrator intensity modulated by an external signal to display addi tional information.
Page 24 HORIZONTAL POSITION POW R--Applies or shuts and V RNI R--Adjusts the L NGTH -- Controls off line power. horizontal position of the length of the B sweep. trace. Fig. 2-16. Functions of the Type 545A Oscilloscope front panel controls.. 2-14...
Page 25 AC Component Voltage Measurements To measure the ac component of a waveform, the plug-in The Type 545A Oscilloscope can be used to measure the unit input selector switch should usually be set to one of voltage of the input waveform by using the calibrated the AC positions.
Page 26 Applications — Type 545A As an example of the method, assume that using a 1 0x 1. To establish the voltage reference line, touch the probe probe and a deflection factor of 1 volt per centimeter, you tip to an oscilloscope ground terminal (or if the reference measure a vertical distance between peaks of 4 centimeters.
Page 27 ’ s attenuation factor of 10 then gives you the actual voltage of positive 6 volts. Another method for measuring time intervals involves the use of the delayed sweep feature of the Type 545A Oscilloscope. In this method the HORIZONTAL DI PLAY Time Measurements switch is placed in the ‘...
Page 28 Applications — Type 545A Frequency 1OX Time/cm (Over 10 cm of Graticule Length) Switch Setting Fig. 3-4. Measuring the frequency of a repetitive input signal. ubtract the first DELAY-TIME MULTIPLIER control setting If you divide the cycles per unit of length by the time...
Page 29 SECT ON 4 C RCU T DESCR PT ON This delay insures that the very "front'' of fast vertical VERT CAL DEFLECT ON SYSTEM signals can be observed. About 0.015 microsecond of the total delay time occurs in the Distributed Amplifier; the General remaining 0.185 microsecond occurs in the Delay Line.
Page 30 Circuit Description — Type 545A Fig. 4-1. Simplified Vertical Amplifier. ®2...
Page 31 Circuit Description — Type 545A — INT. position), a “ sample ” of the vertical signal is used of triggering signal, either triggered operation in the vari to develop the triggering pulse. This “ sample" is obtained ous triggering modes, or synchronized operation, is avail ...
Page 32 Circuit Description — Type 545A Fig. 4-2. Simplified Time-Base Trigger Circuit.
Page 33 Circuit Description — Type 545A The cathodes of both sections are coupled together, and and the Holdoff Circuit. The simplified schematic diagram follow the action of the grids. With the V45B section grid of Fig. 4-3 shows the basic parts of each circuit, and the going in a positive direction, and the cathode in a negative interconnections between circuits.
Page 34 Circuit Description — Type 545A Fig. 4-3. Simplified Time-Base Generator.
Page 35 It is kept from acting on further trigger pulses by the action In the Type 545A, the operator is offered a selection of of the Holdoff Circuit. two sweep circuits of very similar configuration and operat ...
Page 36 Circuit Description — Type 545A Fig. 4-4. Simplified Delay Pickoff Circuit.
Page 37 Circuit Description — Type 545A time, V414 is cut off. Its cathode is tied to the cathode voltage rises and ignites the READY light. With V 1 25 con of V424 which is conducting, and therefore determining the ducting, the TABILITY control regains control over the common-cathode voltage.
Page 38 Circuit Description — Type 545A Fig. 4-5. Simplified Single-Sweep Circuit. (A). 4-10...
Page 39 Circuit Description — Type 545A Fig. 4-6. Simplified Alternate-Trace Operation Circuitry. 4-11...
Page 40 In later Tektronix instruments an additional stage has repetition rate. been added in the Time-Base Generator to provide blank ...
Page 41 Circuit Description — Type 545A Fig. 4-7. Simplified Horizontal Amplifier. 4-13...
Page 42 Circuit Description — Type 545A Fig. 4-8. Simplified Low-Voltage Power Supply. 4-14...
Page 43: Low-Voltage Power Supply
LOW-VOLTAGE POWER SUPPLY + 225-Volt Supply Plate and filament power for the tubes in the Type 545A Rectified voltage from terminals 7 and 10 of the power is furnished by a single power transformer T601. The pri ...
Page 44: High-Voltage Supply
Circuit Description — Type 545A High-Voltage Supply CAL BRATOR A single 60-kc Hartley oscillator furnishes power for The Calibrator is a square-wave generator whose approxi the three power supplies that provide accelerating potentials mately 1-kc output is available at a front-panel connector for the crt.
Page 45 Circuit Description — Type 545A Fig. 4-9. Simplified Calibrator Circuit. 4-17...
Page 46 Circuit Description — Type 545A Fig. 4-10. Simplified Cathode-Ray Tube Circuit. 4-18...
Page 47 Care must be taken to assure free ventilation of the tate filter up and down in solution until grease or dirt Type 545A inasmuch as some of the components are oper is loosened and floated off. ated at dissipation levels such that excessive interior tem ...
Page 48: Fan Connections
If you are responsible for the maintenance of a large at the ceramic strip, lift it free, and move it to the third number of Tektronix instruments, or if you contemplate fre slot as illustrated by the dotted line in Fig. 5-2. Use silver- quent parts changes, we recommend that you keep on hand bearing solder to solder the lead into the slot.
Page 49 Maintenance — Type 545A 3. Tin only the first 1/16 to ⅛ inch of the tip. For solder ing to ceramic terminal strips tin the iron with solder containing about 3% silver. 4. Apply one corner of the tip to the notch where you wish to solder (see Fig.
Page 50: Power Transformer Connections
Maintenance — Type 545A Fig. 5-7. A soldering aid constructed from a ¼ inch wooden dowel. Fig. 5-9. Two types of ceramic strip mountings. T601 is provided with split input windings which are normal ly connected in parallel for 117-volt operation but which can be connected in series for 234-volt operation.
Page 51 The component number of each resistor, inductor, capaci tor, vacuum tube, control and switch is shown on the cir Although the Type 545A is a complex instrument, it can cuit diagrams. The following chart lists the component num ...
Page 52 Maintenance — Type 545A Fig. 5-1 1. Physical location of the circuits which compose the Type 545A Oscilloscope.
Page 53 Maintenance — Type 545A 3. Vertical Amplifier and Delay Line. INTEN ITY full-left (counterclockwise) A TIGMATI M mid-scale 4. Time-Base “ A" Trigger Circuit. CALE ILLUMINATION mid-scale 5. Time-Base “ B" Trigger Circuit. HORIZONTAL PO ITION mid-scale 6. Time-Base “ A ” Generator.
Page 54 After replacing tubes in the distributed amplifier or other the instrument and checking the continuity of both sides of sections of the Type 545A vertical amplifier, it is necessary the line with an ohmmeter. to check the various stages for balance between paired tubes on opposite sides of the amplifier.
Page 55 The vertical deflection Fig. 5-14. (a). Rolloff at leading corner caused by an under circuit in the Type 545A may be divided into three parts, compensated nput Amplifier Stage. (b) . Ringing produced and each part will affect the waveform in a different man- an overcompensated nput Amplifier Stage.
Page 56 Maintenance — Type 545A The rounded corner, and the aberrations about .4 μ sec fol function. Assuming the trouble is not being caused by the lowing the corner, were produced by replacing V 1 204 with plug-in unit, the Input Amplifier stage and the cathode fol ...
Page 57 Maintenance — Type 545A The next step is to connect the voltmeter between the impossible to measure the exact voltage at the Miller grid because of the loading of the meter. However, if a 20,000- plate of V24B and the grid of V45B (the junction of R41 , R37, C37 and R38 is more convenient than the grid of Ω...
Page 58 Maintenance — Type 545A be expanded the full length of the grati ule with the TROUBLESHOOT NG THE LOW-VOLTAGE Length control R176, check the resistance values in the POWER SUPPLY cathode circuit of V 1 73. Proper operation of every circuit in your instrument de ...
Page 59 Maintenance — Type 545A e. Open or leaky filter capacitors. HIGH VOLTAG T ST POINT f. Defective rectifiers. If the output is low with normal ripple, check: a. The resistance values in the dividers. b. The capacitors across the dividers.
Page 60 Maintenance — Type 545A ficient for proper operation. A more accurate check on the TROUBLESHOOT NG THE CRT C RCU T Oscillator may be made by removing the shield covering the high-voltage transformer and measuring the bias at the The intensity, fo us, geometry and calibration of the grid of the oscillator tube.
Page 61 bration is desirable from the standpoint of preventive main A Tektronix Type P Unit may be used in place of the Type 107. A Type P52 Coaxial Cable and a Type B52R Terminat ...
Page 62 Fig. 6-2. Bottom view of the Type 545A Oscilloscope showing the controls may be left in any position. location of the GA N ADJ. control.
Page 63 Calibration Procedure — Type 545A 2. AMPL TUDE-CAL BRATOR Adjustment PROCEDURE The Cal. Adj. control should be set to provide a d c output of 100 volts when the AMPLITUDE CALIBRATOR 1. Low-Voltage Power Supplies switch is in the OFF position. Under these conditions, the calibrator output will be within 3% of the front-panel read ...
Page 64 The geometry of the crt display is adjusted by means of meters (1 minor division). Center the trace vertically on the the GEOMETRY control. To achieve optimum linearity, CORRECT ADJUSTMENT Fig. 6-6. Waveforms obtained while adjusting the geometry of a Type 545A Oscilloscope.
Page 65 Calibration Procedure — Type 545A Fig. 6-8. Time Base B Triggering Circuit Test points. 8. ‘ A ’ Trigger Level Remove the jumper and turn the TRIGGERING LEVEL con trol until the wave-form is triggered at the same point as Fig.
Page 66 Calibration Procedure — Type 545A Centering. Then while switching back and forth between 16. Adjust External Horizontal DC Balance + INT. and — INT., slightly readjust the Trigger Level Cen Connect a jumper from the ‘ A' AWTOOTH to the verti ...
Page 67 Calibration Procedure — Type 545A operation of this control, set TIME/CM to 1 MILLI EC — 20. Adjust Time Base A to Time Base B CALIBRATED, connect 5 MILLI ECOND markers from the Type 180A to the VERTICAL INPUT and trigger the oscillo ...
Page 68 Type quare- switch at 5 μ EC, and 5 μ second markers connected to the Wave Generator or a Tektronix Type P Plug-In Unit is oscilloscope. The adjustment should be made with C260A recommended. (see Right ide View, Fig. 6-3).
Page 69 In the procedure that follows, the trimmer capaci played waveform. The waveform should show neither an tors in the Type 545A Oscilloscope vertical ampli upward nor downward slope anywhere along the top of the fier are considered to be a part of the delay line.
Page 70 Calibration Procedure — Type 545A shoot at the leading edge, you will probably save yourself gain an average level over the length of the flat top of considerable time by presetting the variable inductors. the displayed waveform, you can advance the sweep rate Usually, turning the slugs too far out of the coil will only to 2 μ...
Page 71 Calibration Procedure — Type 545A TRIGGER LOPE INT. (+ or -) waveform. It is important that you adjust each pair of inductors in conjunction with each other. Each inductor TRIGGERING MODE AC LF REJECT, AC should be set at the same position as its corresponding- or DC opposite inductor.
Page 72 XOOO Part first added at this serial number. 000X Part removed after this serial number. *000-000 Asterisk preceding Tektronix Part Number indicates manufactured by or for Tek tronix, also reworked or checked components. (Mod. w/ ) imple replacement not recommended.
Page 73: How To Order Parts
HOW TO ORDER PARTS Replacement parts are available from or through your local Tektronix Field Office. Changes to Tektronix instruments are sometimes made to accommo date improved components as they become available, and to give you the benefit of the latest circuit improvements developed in our engineer ...
Page 74 .0022 μf Fixed C 10 350 v ±20 μμ f 281-523 Cer. Fixed 100 μμf C 11 500 v 283-000 Cer. Fixed .001 μf C 1 5 283-000 500 v Cer. Fixed .001 μf PARTS L ST — TYPE 545A...
Page 75 500 v ±10% 281-509 500 v ±10% C 1 90 20989-up 15 μμf Cer. Fixed 500 v 283-001 C 1 93 .005 μf Cer. Fixed 500 v 283-000 C 1 96 .001 μf Cer. Fixed PARTS L ST — TYPE 545A...
Page 76 .01 μf 350 v 290-044 Fixed C640 125 μf 500 v 283-002 Cer. Fixed C648 .01 μf 290-040 250 v 2 x 40 μf Fixed C649 400 v 285-510 Fixed C650 .01 μf ®3 PARTS L ST — TYPE 545A...
Page 77 23290-up 285-513 Fixed 3000 v C848 20001-23289 .015 μf 283-011 2000 v .01 μf Cer. Fixed C848 23290-up 283-518 500 v C871 330 μμf Mica Fixed 500 v 283-518 Fixed Mica C874 330 μμf PARTS L ST — TYPE 545A...
Page 78 Cer. Fixed C 1 208 .005 μf 283-000 Fixed 500 v C1212 .001 μf Cer. Fixed 500 v 283-000 C 1 223 Cer. .001 μf 285-517 600 v C 1 228 .022 μf Fixed PARTS L ST — TYPE 545A...
Page 79 C 1 347 .7-3 μμf Tub. 281-037 Var. 500 v C 1 348 .7-3 μμf Tub. 281-037 Var. 500 v C 1 349 Tub. .7-3 μμf 281-037 500 v Tub. Var. C 1 350 .7-3 μμf PARTS L ST — TYPE 545A...
Page 80 108-139 L 1 304 Use 108-177 Delay Line 30 section Coil Fixed L 1 305 Delay Line 30 section Coil Use 108-177 Fixed L1 334 Delay Line 20 section Coil Use 108-176 Fixed ®5 PARTS L ST — TYPE 545A...
Page 81 ½ W 20420-up 306-333 Comp. Fixed 33 k 302-470 Comp. ½ W Fixed 47 Ω 20420-up *Concentric with R110 and W110. Furnished as a unit. **Concentric with R210 and W210. Furnished as a unit. PARTS L ST — TYPE 545A...
Page 82 68 k 301-105 ½ W Fixed Comp. 1 meg R152 302-103 ½ W Fixed Comp. 10 k R153 W110. Furnished as a unit. * Concentric with R17 and Ganged with ** Center tap. ©7 PARTS L ST — TYPE 545A...
Page 83 Comp. .5 W Var. R211 100 k ½ W 302-104 Comp. R214 Fixed 100 k * Concentric with R67 and W210. Furnished as a unit, † † Concentric with W160 and W160Y. 8-10 ®« PARTS L ST — TYPE 545A...
Page 84 900 k Fixed R301C 309-046 Fixed Prec. 111 k ½ W R301E ½ W 302-105 Fixed Comp. 1 meg R303 ½ W 302-102 Fixed Comp. R311 306-333 Comp. 33 k Fixed R313 8-11 ©5 PARTS L ST — TYPE 545A...
Page 85 311-018 Var. 20 k R358 24140-up ½ W 302-470 Fixed Comp. 47 Ω R361 310-506 R364 6 — 25 k Ma nufactured by Tektronix ½ W 302-470 Comp. 47 Ω Fixed R366 304-222 Fixed Comp. 2.2 k R373 311-008 Var.
Page 86 R638 302-683 ½ W Comp. Fixed 68 k R639 304-100 Fixed Comp. R640 10 Ω 304-100 Comp. Fixed 10 Ω R641 302-102 ½ W Comp. Fixed R643 * Cathode resistor for VI 223. 8-13 PARTS L ST — TYPE 545A...
Page 87 R753 ½ W 302-154 Fixed Comp. R757 150 k ½ W 302-124 Comp. 120 k Fixed R758 302-273 27 k ½ W Fixed Comp. R759 302-100 Fixed Comp. R760 ½ W 10 Ω 8-14 PARTS L ST — TYPE 545A...
Page 88 309-119 Fixed Prec. 6.375 k ½ W R886 ½ W 309-117 Fixed Prec. 2.1 k R887 309-116 Prec. ½ W Fixed R888 1.025 k Prec. 309-113 Fixed 610 Ω ½ W R889 8-15 ©3 PARTS L ST — TYPE 545A...
Page 89 ½ W Fixed Comp. 1 meg R1089 316-822 elected 8.2 k R1090 20001-29259 316-682 elected 6.8 k R1090 29260-up 311-061 Comp. 250 k Var. R1091 302-473 Fixed Comp. R1092 47 k ½ W 8-16 PARTS L ST — TYPE 545A...
Page 90 TRIGGERING MODE W10B TRIGGER LOPE W60A use * 2 62-562 | 260-261 TIME BA E B TRIGGERING MODE W60B 260-017 RE ET, push button, P T W103 * W60A and W60B are concentric controls. 8-17 PARTS L ST — TYPE 545A...
Page 91 *** W347B is concentric with W301 and W347A. † Ganged with R1 10, concentric with R17. Furnished as a unit. †† Concentric with R160Y and W160Y. ††† Concentric with R67 ganged with R210. Furnished as a unit. 8-18 PARTS L ST — TYPE 545A...
Page 92 154-187 6DJ8 V 1 033 154-187 6DJ8 V 1 043 Use 154-367 V 1 054 8136 Use 154-367 8136 V 1 064 154-041 12AU7 V 1 084 Use 154-367 8136 V 1 104 8-19 PARTS L ST — TYPE 545A...
Page 93 Use 154-367 8136 V 1 194 Use 154-367 8136 V 1 204 Use 154-367 8136 V1214 Use 154-367 8136 V 12 23 154-187 6DJ8 t V 014 & V 024 furnished as a unit. 8-20 PARTS L ST — TYPE 545A...
Page 94 BU HING, NYLON, for 5-way binding post 358-054 BU HING, BANANA JACK, BRA ’ / 4 -32 x' 3 / 32 x .159 ID x .375 OD 179-061 CABLE, HARNE , F & I 179-179 CABLE, HARNE , VA 8-21 PARTS L ST — TYPE 545A...
Page 95 CLAMP, #20 Wire for Neon Bulbs CONNECTOR, CHA MT., 16-contact female 131-018 131-049 CONNECTOR, CABLE, CRT PIN 131-064 CONNECTOR, CHA MT., (CALOUT) COAX N 20001-38829 131-279 CONNECTOR, CHA MT., COAX, BNC N 38830-up 8-22 PARTS L ST — TYPE 545A...
Page 96 LARGE BLACK, 1.375 OD x .650 hi, ’ /, hole thru 366-040 KNOB, LARGE BLACK, 1.375 OD x .650 hi, 17 / 64 hole thru 366-046 KNOB, LARGE BLACK, 1.625 ODx.655 hi, .250 ID thru 366-058 8-23 PARTS L ST — TYPE 545A...
Page 97 210-449 NUT, HEX 5-40 x % 210-455 NUT, HEX ’ / 4 -28 x % x 3 / 32 210-457 NUT, KEP 6-32 x s / 14 210-458 NUT, KEP 8-32 'V 32 8-24 PARTS L ST — TYPE 545A...
Page 98: Panel, Front
PO T, BINDING, 5-way tem & Cap Ass'y only fluted cap 129-051 PO T, BINDING, BPN13, metal, long 129-053 PO T, BINDING, BPN13, metal, short 354-048 RING, ECURING TEEL .335 ODx.145 ID x .025 thick 8-25 PARTS L ST — TYPE 545A...
Page 99 6-32x 3 /i6 211-504 CREW 6-32 x'/ 4 211-507 6-32 x 5 / u CREW 211-510 CREW 6-32 x % 211-511 CREW 6-32 x ’ /j 211-512 CREW 6-32 x ’ / 2 8-26 PARTS L ST — TYPE 545A...
Page 100 HIELD, ALUM., 6% x 3% x 1 1 / 2 , F & I 337-187 HIELD, 5" GRATICULE LIGHT 337-279 HIELD, ALUM., 1 % x 1 7 / 8 x 1 % 337-287 HIELD, 500A ERIE 8-27 PARTS L ST — TYPE 545A...
Page 101 PACING ALUM., .180 ID x % OD x % 2 , 1 end counter sunk 166-107 TUBE, PACER ALUM., .065 ID x % ODx'% 166-143 WA HER, TEEL, 6L x % x .032 210-803 8-28 PARTS L ST — TYPE 545A...
Page 102 % OD x ’ / 8 " thick 210-902 WA HER, TEEL, flat .470 ID x * i/ 32 OD x .030 thick 210-914 WA HER, WAVY, .007 Phos. Bronze .492 OD x .320 ID x .035 8-29 PARTS L ST — TYPE 545A...
Page 103 TYPE 545A OSC LLOSCOPE...
Page 104 11-5 BLOCK DIAGRAM...
Page 105 WAVEFORMS VOLTAGE R WERE OBTAINED WITH CONTROL ET A SEE PARTS LIST FOR EARLIER VALUES AND S/N CHANGES OF EXTERNAL TRIGGER IGNAL PARTS MARRED WITH RED FOR WAVEFORM ......... TINT BLOCKS FOR VOLTAGE ..........TRIGGERING LEVEL FOR WAVEFORM ......... FOR UPPER VOLTAGE READING .... FOR LOWER VOLTAGE READING ..
Page 110 TO GRID, PIN 9. VKol TO CATM., P1NS> 3^8, V 173 MILLER RUNUP TUBE RUNUP CF (TIME-BASE GEN. DIAG.) TIME-BASE GEN. A DIAG.) - 62 IME-BASE IMING SWI CH...
Page 111 TRIGGER INPUT AMPLIFIER W 4>OA £ W feOB ARE CONCENTRIC CONTROLS TYPE 5 4-5 A CILLO COPE...
Page 112 TRIGGER. TRIGGER AMPLIFIER MULTI VIBRATOR WAVEFORMS VOLTAGE READ NGS + IOOV WERE OBTAINED WITH CONTROL ET A FOLLOW : EXTERNAL TRIGGER IGNAL FOR WAVEFORM .... 2 KC NONE FOR VOLTAGE READING TRIGGERING LEVEL TRIGGERING LEVEL FOR WAVEFORM ......FOR UPPER VOLTAGE READING FOR LOWER VOLTAGE READING MPORTANT see also...
Page 113 TYPE 545 A CILLO COPE...
Page 114 WAVEFORMS VOLTAGE READ NGS WERE OBTAINED WITH CONTROL ET A FOLLOW : LENGTH ....................TABILITY FOR WAVEFORM ................ PRE ET FOR UPPER VOLTAGE READING ( WEEP I DI ABLED) . CCW, BUT NOT WITCHED TO PRE ET FOR LOWER VOLTAGE READING ( WEEP FREE RUN ) .
Page 115 TO CATH.j PIN 3,V233A TO CATH., PIN 8.V283B HOLD-OFF CF RUNUP (TIME-BA5E. GEM.BDIAG.) ( TIME- BASE GEN. B DIAG.) L _______________ HOLD - OFF __ TIMINQ __________ , “ CAPACITORS CAPACITOR TYPE 5 4- 5 A CILLO COPE...
Page 116 ATH., PIM 8, V283B TO . GRID, PIN! 1, V2GI RUNUP MILLER RUNUP TUBE -BASE GEM. B DIAG.) e> time base diag R26OF IO. IM R 2feOE G.O6M R24OD 4.O4M ___ TIMING ___ __ TIMING _ CAPACITOR 5 RESISTORS 11 -28- GI EE PART LI T FOR EARLIER VALUE...
Page 117 DI F F EREN GE AMPLIFIER. GANGED SWITCHES HORIZONTAL DI PLAY SW3OI --------- SW347A FOR ADDITIONAL SWITCH DETAILS CRT DIAG. HORIZ. AMR. DIAG. SW347A BLOCK DIAG. EXT. HORIZ. AMP. DIAG- SW3OI TIME-BASE GEN. A DIAG. TYPE 545A O CILLO COpE...
Page 118 L. _________ DEL Ay ED T RIGGER. _________ TRIGGER MULTIVIBRATOR AMPLIFIER ITIONAL SWITCH DETAILS SEE: WAVEFORMS VOLTAGE READ NGS iT DIAG. WERE O8TAINED WITH CONTROL ET A FOLLOW : >RIZ. AMP. DIAG- .OCR DIAG. EXT. TRIGGER INPUT IGNAL (TIME-BA E-A) ......2 KC tT.
Page 119 TYPE S 4 5 A OSCILLOSCOPE...
Page 120 TO HORIZONTAL DISPLAY SWITCH, SW3A7A-1F (HORIZ. AMP. DIAG.) VOLTAGE READ NGS were obtained WITH CONTROL ET A FOLLOW : NOTE:- . . . NONE EXTERNAL HORIZONTAL INPUT IGNAL ......HORIZONTAL DI PLAY ............. EXT. X10 FOR DECOUPL1MG NETWORKS .
Page 121 ..............TIM TINT BLOCKS FOR VOLTAGE READING ............TIM HORIZONTAL PO ITION FOR UPPER VOLTAGE READING ..........CC FOR LOWER VOLTAGE READING .......... CM MPORTANT EE AL O NOTE ON TIME BA E A TRIGGER DI TYPE. 545A O CILLO COPE...
Page 122: Horizontal Amplifier
OUTPUT CF S OUTPUT t HF CAPACITANCE DRIVER. CF AMPLIFIER- DRIVER. HORIZONTAL AMPLIFIER CIRCUIT NUMBER 330 THRU 399 <G. zx . e>. II - 2G - fel...
Page 124 4-4-62 VERTICAL AMPLIFIER I CIRCUIT NUMBERS I 1000 THRU 1229...
Page 125 L/304 FROM VERT CAL AMPL F ER TYPE 545A O CILLO COPE...
Page 126 LI304 L/305 LOWER DEFLECT ON PLATE UPPER DEFLECT ON PLATE 11 - n-fei ELAY LINE NETWORK...
Page 127 CALIBRATOR. MULTIVI BRATOR- TYpE 54BA O CILLO COPE...
Page 128 CAL. OUT 2-7-62 GALI E R.ATOR. 870-899...
Page 129 T ME-BASE CHASS S VERT CAL AMPL F ER CHASS S POWER SUPPLY CHASS S - & - 6t NEATER W R NG D AGRAM TYPE 54SA OSC LLOSCOPE...
Page 130 Cip-CUIT NUMBERS I 600 THP-U 769 | . S'.
Page 131 FOR ADC EE: H e> 545 A OSCILLOSCOP...
Page 132: Cr.t Circuit
FOR ADDITIONAL WITCH DETAIL HORIZ.AMP. DIAG- DELAY PICKOFF DIAG. LOCK DIAG. ----------------___ CR.T CIRCUIT II- 19 -fel...
Page 133 MANUAL CHANGE NFORMAT ON At Tektronix, we continually strive to keep up with latest electronic developments by adding circuit and component improvements to our instruments as soon as they are developed and tested. ometimes, due to printing and shipping require ...

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