Download
Share
Print this page
Tektronix 114 Instruction Manual
  1. Manuals
  2. Brands
  3. Tektronix Manuals
  4. Pulse Generator
  5. 114
  6. Instruction manual

Tektronix 114 Instruction Manual

Hide thumbs

Advertisement

Quick Links

Download this manual
NSTRUCT ON
MANUAL
Serial Number _____________
4
ULSE GENERATOR
ektronix, Inc.
.W. , Millikan Way • P. O. Box 500 • Beaverton, Oregon 97005 • Phone 644-0161
• Cables: Tektronix
070-465
265

Advertisement

loading

Related Manuals for Tektronix 114

Summary of Contents for Tektronix 114

  • Page 1 NSTRUCT ON MANUAL Serial Number _____________ ULSE GENERATOR ektronix, Inc. .W. , Millikan Way • P. O. Box 500 • Beaverton, Oregon 97005 • Phone 644-0161 • Cables: Tektronix 070-465...
  • Page 2 WARRANTY All Tektronix instruments are warranted against defective materials and workman ­ ship for one yeor. 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 Type 114 Pulse Generotor Type 114...
  • Page 4 4 Parts List and Diagrams ection 5 A list of abbreviations and symbols used in this manual will be found on page 5-1. Change in ­ formation, if any, is located at the rear of the manual. Type 114...
  • Page 5 ±3 to 10 V 30 Ω to 95 Ω of the output pulse. In cases where the Type 114 is set for a pulse width longer than the pulse repetition period, a built- in feature automatically counts down the repetition rate to External Trigger nput.
  • Page 6 Characteristics — Type 114 Megapulses per second. GLOSSARY OF TERMS When changing from one voltage level to Overshoot A circuit that has two stable states and Bistable another, a momentary excursion greater (multivibrator) requires two input pulses to complete a than the change desired.
  • Page 7 (See Fig. 2-1.) witch elects the two basic voltage ranges and the polarity of the output signal. The function of each item on the Type 114 front panel is given in the following tabulation. VARIABLE Provides for varying the output amplitude Control within the range selected by the AMPLI ­...
  • Page 8 Operating nstructions — Type 114 Fig. 2-1. Front panel control*. Fig. 2-2. Type 114 rear pon e l.
  • Page 9 3. Connect a coaxial cable between the TRIGGER OUT ­ sociated VARIABLE control, it is possible to delay the trigger PUT connector of the Type 114 and the vertical input of the pulse over a range from approximately 150 nanoseconds to oscilloscope.
  • Page 10 NOTES...
  • Page 11 Width Generator. This section contains the theory of operation of the various When a pulse having the proper amplitude and risetime is circuits in the Type 114. The text is supplemented by two applied EXTERNAL TRIGGER — INPUT connector,...
  • Page 12 Q 1 94, and Q 1 84 is not used. Resetting of the width bistable is accomplished by applying the output of WIDTH > PERI ­ the switch to TRAILING EDGE, the Type 114 may be used OD light driver transistor Q155 to the base of Q125.
  • Page 13 Trigger Output Circuit Q234 Width Bistable Q2 0 5, Q215 Fig. 3-2. Type 114 block configuration for square-wave output. switch provides continuously variable voltage amplitude CAUTION within the ranges of the AMPLITUDE switch. Do not connect test probe ground clips to the com ­...
  • Page 14 NOTES...
  • Page 15 Remove the loosened dust by trouble is actually due to a malfunction within the Type vacuum and/or dry, low pressure compressed air (high 114 and not due to improper control settings or a fault in velocity air can damage certain components). Hardened associated equipment.
  • Page 16 Maintenance and Calibration — Type 114 Fig. 4-1. Equipment necessary for recalibrating the Type 114.
  • Page 17 Calibration and Verification ed behind the detent section of the switch towards the last Recalibrate the Type 114 after each 500 hours of opera ­ wafer. The letters F and R indicate whether the front or tion, or every six months if used intermittently. It may also rear of the wafer is used to perform the particular switch ­...
  • Page 18 WIDTH ....... 100 n c. Connect the Type 114 power cord to a variable line VARIABLE ....CAL voltage source and set the input voltage to the Type 114 at c. AMPLITUDE ....3 to 10 V, + polarity 115 volts.
  • Page 19 +25 -VOLT SUPPLY +35- VOLT SUPPLY ADJUST R290 Fig. 4-3, Type 114 chassis, bottom view. b. Check that the meter reads + 3 volts ±½ volt from Check +35-volt unregulated supply the j unction to chassis ground. a. Change the VOM positive lead to the positive terminal of C298.
  • Page 20 Maintenance and Calibration — Type 114 Fig. 4-5, Control settngs for PER OD CAL adjustment . Adjust PER OD CAL control R125 et the Type 114 WIDTH — VARIABLE control to CAL Turn the WIDTH control to 1 µ and the PERIOD control to 100 µ...
  • Page 21 Adjust capacitor C115F (see Fig. 4-10) so that the peaks adjust the TRIGGERING LEVEL control for a stable display. of the pulses from the Type 114 occur at the same point on e. Check for horizontal alignment between the two sets each succeeding pulse from the Type 180A as shown in Fig.
  • Page 22 Using Table 4-2, check the period accuracy of the re ­ maining settings of the PERIOD switch. In all cases the ac ­ et the Type 114 PERIOD and WIDTH controls to 1 m curacy should be as specified. and turn both VARIABLE controls to CAL (see Fig. 4-11).
  • Page 23 11. Adjust 100 nS Pulse Width capacitor C195F et the Type 114 WIDTH switch t o 100 n , set the PE ­ RIOD switch to 1 µ S (see Fig. 414). Fig. 4-13. location of W DTH CAL control R180 et the Type 547 TIME/CM (B) to .1 µ...
  • Page 24 .2 µ EC 10 m c 10 cycles 13. Check W DTH — VAR ABLE control range et the Type 114 WIDTH control to 100^5, set the PE ­ RIOD control to 10 m and the PERIOD — VARIABLE control to CAL.
  • Page 25 GER and note that the display remains the same. Return the PERIOD control to 1 µ put operation et the Type 114 PERIOD control to 1 µ , s et the WIDTH 17. Check pulse risetime, falltime, and aber ­ control to 100 n and set the VARIABLE controls to CAL.
  • Page 26 This gives an equivalent time/cm of 10 nanoseconds. The risetime or falltime of the Type 114 as read on the crt of the Type 547 will be less than 13 Measure the rise ti me between the 10% and 90% points nanoseconds.
  • Page 27 Maintenance and Calibration — Type 114 CAL BRAT ON RECORD erial _______________ Date ________________ 1. Voltage on outside shell of C298 (+25-volt supply) ________________ 2. Voltage on positive terminal of C298 (+35-volt supply) 3. Voltage across D209 _______________ 4. Regulation of +25-volt supply _______________ %.
  • Page 28 Maintenance and Calibration — Type 114 Fig. 4-20. Locations of electrical components. 4-14...
  • Page 29 If a part you have ordered has been replaced with a new or improved part, your local Tektronix Field Office will contact you concerning any change in part number. ABBREV AT ONS AND SYMBOLS...
  • Page 30 Parts List — Type 114 EXPLODED V EW...
  • Page 31 Parts List — Type 114 EXPLODED V EW SER AL/MODEL NO. REF. DESCR PT ON PART NO. EFF. D SC. KNOB, small red — CAL VARIABLE 366-0038-00 knob includes: CREW, set, 6-32 x 3 / ]( inch H 213-0004-00 KNOB, charcoal — PERIOD...
  • Page 32 Parts List — Type 114 EXPLODED V EW (Cont'd) SER AL/MODEL NO. REF. PART NO. DESCR PT ON EFF. D SC. WITCH, wired — AMPLITUDE 262-0698-00 switch includes: WITCH, unwired — AMPLITUDE 260-0672-00 ROD, switch 384-0299-00 COUPLING, pot 376-0014-00 RE I TOR, variable mounting hardware: (not included w/resistor) LOCKWA HER, internal, % x ’...
  • Page 33 Parts List — Type 114 EXPLODED V EW (Cont'd) SER AL/MODEL NO. REF. PART NO. DESCR PT ON EFF. D SC. TRAN I TOR mounting hardware: (not included w/transistor) 386-0143-00 PLATE, mica 210-0202-00 LUG, solder, E #6 210-0983-00 1139 WA HER, shouldered, black anodized...
  • Page 34 Parts List — Type 114 EXPLODED V EW (conf) SER AL/MODEL NO. REF. DESCR PT ON PART NO. EFF. D SC. ROD, spacer 385-0181-00 RE I TOR mounting hardware: (not included w/resistor) 211-0553-00 CREW, 6-32 x 1 y 2 inches, RH...
  • Page 35 Parts List — Type 114 CAB NET SER AL/MODEL NO. REF. PART NO. DESCR PT ON EFF. D SC. 437-0077-00 CABINET, assembly 437-0077-01 CABINET, assembly cabinet includes: 426-0254-00 FRAME, front, bottom mounting hardware: (not included w/frame) 212-0004-00 CREW, 8-32 x 5 / 16 inch, BH 212-0002-00 CREW, 8-32 x 1 /, inch, 100°...
  • Page 36 Parts List — Type 114 CAB NET (Cont'd) SER AL/MODEL NO. REF. DESCR PT ON PART NO. EFF. D SC. FRAME, front, top 426-0255-00 mounting hardware: (not included w/frame) CREW, 8-32 xy 4 inch, 100° C K FH phillips 212-0002-00...
  • Page 37 Parts List — Type 114 CAB NET (cont) SER AL/MODEL NO. REF. DESCR PT ON PART NO. EFF. D SC. 214-0567-00 939X PRING, grounding 358-0260-00 BU HING, plug-in securing 358-0293-01 BU HING, plug-in securing, left mounting hardware: (not included w/bushing) 211-0541-00 CREW, 6-32 x ’...
  • Page 38 Parts List — Type 114 STANDARD ACCESSOR ES SER AL/MODEL NO. REF. PART NO. DESCR PT ON EFF. D SC. 161-0024-00 1319 CORD, power, 3 conductor 8 feet 161-0024-01 1320 CORD, power, 3 conductor, 8 feet 103-0013-00 ADAPTER, power cord...
  • Page 39 Parts List — Type 114 ELECTR CAL PARTS Values are fixed unless marked Variable. Tektronix Ckt. No. Part No. Description /N Range Bulbs B 1 54 150-043 Ass ’ y, Incandescent WIDTH-PERIOD B298 150-043 Ass ’ y, Incandescent POWER Capacitors Tolerance ±20% unless otherwise...
  • Page 40 Parts List — Type 114 Diodes Tektronix Description Ckt. No. Part No. S/N Range D 1 01 *152-075 Germanium Replaceable by 1N3605 D114 *152-185 ignal 152-0071-00 Germanium ED-2007 D115 D 1 18 *152-185 ignal Replaceable by 1N3605 Germanium D 1 31...
  • Page 41 Parts List — Type 114 Transistors (Cont'd) Tektronix Ckt. No. Part No. Description S/N Range Q215 *151-108 Replaceable by 2N2501 Q224 *151-108 Replaceable by 2N2501 *151-108 Replaceable by 2N2501 Q234 Q244 *151-127 elected from 2N2369 elected 2N2501 Q254 Use *153-0543-00...
  • Page 42 Parts List — Type 114 Resistors (Con'd) Tektronix Ckt. No. Part No. Description /N Range 316-220 R207 22 Ω ¼ w R209 302-152 1.5 k ½ w R214 305-621 620 Ω R216 316-270 27 Ω ¼ w 270 Ω ¼ w...
  • Page 43 Parts List — Type 114 Transformers Tektronix Description S/N Range Ckt. No. Part No. *120-370 Toroid, 3 windings T131 Power T281 *120-369 5-15...
  • Page 44 All voltages measured with respect to the outside shell of C283 unless otherwise (*) indicated. Voltage readings vary somewhat between instruments to normal manufacturing tolerances and component characteristics. Waveforms shown on the schematics were obtained from the c rt of a Tektronix Type 547/1A1 Oscilloscope.
  • Page 45 TYPE 114 PUL E GENERATOR...
  • Page 46 PUL E. GENERATOR...
  • Page 47 TYPE IM PUL E GENERATOR...
  • Page 48 SW282 POWER SUPPLY OUTPUT AMPLIFIER 4 POWER UPPLY...
  • Page 49 TYPE TEXT CORRECTION Section Characteristics Page st column, Pulse Width CHANGE: 2nd sentence to read: With the width VARIABLE control at the CAL end of its range, the width accuracy is within (+ 0 ns on negative pulse) of indicated value at 0 ns through µ...
  • Page 50 TYPE lilt PARTS LIST CORRECTION CHANGE TO .0 µ F µ F *295-0 08-00 Timing Capacitor (PERIOD) 0.009925 µ F 960 pF * Checked assembly SCHEMATIC CORRECTION PULSE GENERATOR M 0 r 952/667...