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Tektronix 515 Instruction Manual

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. W. Millikan Way • P.O. Box 500 • Beaverton, Oregon • Phone MI 4-0161 • Cables: Tektronix

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Summary of Contents for Tektronix 515

  • Page 1 . W. Millikan Way • P.O. Box 500 • Beaverton, Oregon • Phone MI 4-0161 • Cables: Tektronix...
  • Page 2 WARRANTY Type 515/515A...
  • Page 3 CONTENTS Warranty pecifications ection 1 ection 2 Operating Instructions Circuit Description ection 3 Maintenance ection 4 Recalibration Procedure ection 5 ection 6 Parts List and chematic Diagrams Accessories ection 7 Type 515/515A ttp://manoman.sq ill.com...
  • Page 4 YPE 5J5A OSCILLOSCOPE SltlAL 2 K^- nw two « * < Y SC Alt M-llM* ASTIGMATISM INTtNSITY POSITIONING ------------ ) VERTICAL H0«0*** IN»U> SIlKTOt MMJAit-W** 1 Type 515/5 I A ttp://manoman.sq ill.com...
  • Page 5 The Type 515/515A Oscilloscope is a compact, portable, general purpose oscilloscope. The dc-coupled amplifier and wide range of sweep rates, combined with reduced size, make the Type 515/515A a versatile field or laboratory instrument. Unblanking-DC coupled. Vertical-Deflection System Trigger Requirements Deflection Factor-.
  • Page 6 Mechanical Specifications Ventilation-Filtered, forced-air ventilation. 1-P6017 probe. 1-A510 Binding Post Adapter. Finish - Photo-etched, anodized panel, blue wrinkle, perforated cabinet. 1-F510-5 green filter. Dimensions-9 3/4" wide, 13 1/2" high, 211/2" 1 -Instruction manual. deep. Weight -40 pounds. pecifications - Type 515/515A...
  • Page 7 EXPORT POWER TRAN FORMER Transformer Primary The instrument fur which this manual was prepared is equipped with a special transformer. The transformer has eight primary terminals making possible six different input connections. The six primary connections are shown in Fig. 1. POWER TRANSFORMER HAS TWO EXTRA WINDINGS PERMITTING NOMINAL PRIMARY VOLTAGES OF...
  • Page 8 515/515A, since the function of many of the controls is the same as the function of corresponding controls in other Tektronix instruments.
  • Page 9 The LEVEL control is not used in the H F circuits are operating. YNC mode. FUNCTIONS OF CONTROLS AND CONNECTORS CRT Controls FOCU Control to adjust the beam for maximum sharpness of the trace. INTEN ITY Control to vary the brightness of the trace. Operating Instructions - Type 515/515A...
  • Page 10 Fig. 2-3. weep controls in typical position for DC mode of triggering. This mode is particularly useful for the frequency range below 60 cps. sweep synchronization. This mode is most effective about 5 me. Operating Instructions - Type 515/515A ttp://manoman.sq ill.com...
  • Page 11 Four-position switch to select either input connector and insert or remove a de blocking capacitor from the input circuits. DC BAL. crewdriver control to balance the amplifier circuits so that there is no shift in the trace position as the VARIABLE control is rotated. Operating Instructions - Type 515/515A...
  • Page 12 Triggering Controls General Triggering Level The function of the trigger circuit is to In the Type 515/515A the TRIGGERING LEVEL derive from the incoming waveform a sharp control determines the point on the triggering pulse of suitable amplitude to trigger the waveform at which triggering will occur.
  • Page 13 Usually a triggering waveform can be obtained which is synchronized mode. The TRIGGER ELECTOR controls are set at 4- INT, DC and with the discontinuity. the TRIGGERING LEVEL control is at 0. Operating Instructions - Type 515/515A...
  • Page 14 60 cycles to 2 megacycles when will free-run. Three principal settings of the TABILITY control are used; the first setting using this mode. Operating Instructions - Type 515/515A...
  • Page 15 The AC and DC triggering modes The procedure outlined above will provide allow the level on a waveform, at which trigger ­ ing occurs, to be selected by the TRIGGERING stable triggering for most applications. How ­ Operating Instructions - Type 515/515A...
  • Page 16 The TIME/CM of horizontal deflection is indicated by the you make connections to the INPUT connectors. Improper termination of cables may cause ring ­ black numbers when the HORIZ. DI PLAY Operating Instructions - Type 515/515A...
  • Page 17 With this connection the plates are maintained at the proper operating potential and positioning The square-wave calibrator provides a source of square waves of known amplitude at about control is retained by the front-panel controls. 2-10 Operating Instructions - Type 515/515A...
  • Page 18 This diagram, as well as the General ones which follow, is designed to fold out so The Type 515/515A vertical amplifier has that the diagram can be studied along with a maximum sensitivity of .05 volt per centimeter the text without turning any pages.
  • Page 19 Each section of the line is turned for optimum The TRIGGER ELECTOR switch with the red knob, W5, has four positions which arrange response to a square wave. Circuit Description - Type 515/515A...
  • Page 20 ­ state. To return the multivibrator back to chronized with repetitive signals over a wide the quiescent state with V110A conducting, a range of frequencies without readjustment. When Circuit Description - Type 515/515A...
  • Page 21 The gain of the Miller tube as a class-A has passed the right-hand limit of the graticule. amplifier is so high that the plate signal C130 on the grid of V140B retards the return Circuit Description - Type 515/515A...
  • Page 22 Transformer position, the HORIZ. DI PLAY switch connects the amplifier to the EXT. HORIZ. INPUT Plate and heater power for the Type 515/515A binding post to display the signal applied to is provided by a single power transformer, this binding post.
  • Page 23 High-Voltage Supply vary somewhat between tubes. R753, labeled GEOM. ADJ. on the chassis, permits this Accelerating voltage for the cathode-ray tube voltage to be adjusted. is obtained by rectifying a 60-kc voltage pro ­ Circuit Description - Type 515/515A...
  • Page 24 Air Filter from the factory in Portland, Oregon. Be The Type 515/515A is cooled by filtered sure to consult the instruction manual to see what tolerances are required. forced air. The air filter is constructed of aluminum wool coated with adhesive.
  • Page 25 Soldering and Ceramic Strips for RP Air Filters, or EZ Kleen Air Filters. Many of the components in your Tektronix Other adhesive materials are no doubt satis ­ factory. instrument are mounted on ceramic terminal strips.
  • Page 26 Occasionally you will wish to hold a bare wire in place as it is being soldered. A be soldered as shown in Fig. 4-4. Use only handy device for this purpose is a short enough heat to allow the solder to flow freely Maintenance - Type 515/515A...
  • Page 27 Fig. 4-5. A soldering aid constructed from a 1/4 inch wooden dowel. Ceramic Strips Two distinct 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 28 Deflection System power transformer, to the next lead which The cathode-ray-tube display should help is coded brown-red-brown. Install the proper in locating the source of trouble. If no spot size fuse. Maintenance - Type 515/515A ttp://manoman.sq ill.com...
  • Page 29 If the spot is returned to the screen by of the source of trouble, check the power supply and (3) use the presentation on the shorting the deflection plates, check the amplifier concerned. screen to help you localize the trouble. Maintenance - Type 515/515A...
  • Page 30 10 me. Equipment Required Power Supply The following equipment is necessary for a complete calibration of the Type 515/515A All power-supply voltages except the crt Oscilloscope: voltages are available at the ceramic strip behind the power transformer.
  • Page 31 For best results, the attenuator adjustment Vertical-Amplifier Adjustment should be made with a square-wave generator having a short risetime, such as the Tektronix 1. DC Balance Adjustment Type 105. An approximate adjustment can be made by using the calibrator waveform,...
  • Page 32 VOLT /CM CAPACITOR used when making these adjustments. The Tektronix Type 107 is recommended. C306 Tektronix Type 105 is satisfactory if pre ­ C312 cautions are taken to obtain the best risetime C316 possible. Refer to the instruction manual for...
  • Page 33 +INT to -INT. imul ­ of the main sweep trigger circuit in the AUTO, taneously adjust the TRIGGERING LEVEL position of the red TRIGGER ELECTOR knob CENTERING control and the TRIGGERING Recalibration Procedure - Type 515/515A...
  • Page 34 CALIBRATED. Time-Base Circuit Adjustments et the HORIZ. DI PLAY switch to NORM. The time-base circuits of the Type 515/51 5A are quite stable and should not require fre- c. Adjust the Horiz. Gain Adj. control, located quenty readjustments. The need for readjust ­...
  • Page 35 Capacitor C272, located behind the plastic correspond with the graticule. plate over the neck of the crt, adjusts the maximum sweep speed of the oscilloscope. c. Recheck step 6-d. Recalibration Procedure - Type 515/515A...
  • Page 36 Display a 10-mc sine wave with the in ten centimeters. trace centered. e. Recheck step 10. Turn the HORIZ. DI PLAY switch to SAWTOOTH AMPL. (SWP. LENGTH) TRIGGERING rrMTroiKin C224 Fig. 5-1 Right ide View Recalibration Procedure - Type 515/515A ttp://manoman.sq ill.com...
  • Page 37 C260 C486 C320 Fig. 5-2 Left ide View Recalibration Procedure - Type 515/515 A ttp://manoman.sq ill.com...
  • Page 38 LIST ABBREVIATIONS SPECIAL NOTES AND SYMBOLS...
  • Page 39 HOW TO ORDER PARTS...
  • Page 40 TYPE 515/515A Parts List Correction (8) Electrical unwired 260-149 1001 -up W321 should read Mechanical should read N4808-6819 406-368 B RACKET, CRT UPPORT should read N6820-up 406-729 BRACKET, CRT UPPORT 210-005 LOCKWA HER, #6 EXT TYPE 515 Parts List Correction (3)
  • Page 41 TYPE 515A Mod. 3856 Tent. /N 6980 The instrument has been modified by changing to a lighter fan. The purpose is to minimize breaking of 6080 tubes during shipment. PART LI T Change to 147-022 Fan motor 236v - PMC 285-588 C603 2/if...
  • Page 42 PARTS LIST Bulbs Capacitors ifif 27 niif ujif i if 56 niif ifif PARTS LIST — TYPE 515/515A...
  • Page 43 Capacitors (continued) PARTS LIST--TYPE 515/515A...
  • Page 44 Capacitors (continued) PARTS LIST — TYPE 515/515A...
  • Page 45 Diodes Fuses Inductors 7 ph 7 ph Resistors PARTS LIST — TYPE 515/515A...
  • Page 46 Resistors (continued) PARTS LIST — TYPE 515/515A...
  • Page 47 Resistors (continued) 47 Q 47 Q ®®1 PARTS LIST — TYPE 515/515A...
  • Page 48 Resistors (continued) 302-470 '/ 2 W 47 Q PARTS LIST — TYPE 515/515A...
  • Page 49 (continued) 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W 72 W PARTS LIST — TYPE 515/515A...
  • Page 50 Resistors (continued) ’ Aw 47 Q 47 Q ®®= PARTS LIST — TYPE 515/515A...
  • Page 51 Resistors (continued) y 2 w 6-10 PARTS LIST — TYPE 515/515A...
  • Page 52 Resistors (continued) '/ 2 w Rectifiers Switches 6-11 PARTS LIST — TYPE 515/515A...
  • Page 53 Transformers Thermal Cutout Electron Tubes and Semiconductors 6-12 @©2 PARTS LIST — TYPE 515/515A...
  • Page 54 Electron Tubes and Semiconductors (continued) 6-13 PARTS LIST — TYPE 515/515A...
  • Page 55 Type 51 5A Mechanical Parts List 6-14 @®L PARTS LIST — TYPE 515A...
  • Page 56 Mechanical Parts List (continued) 6-15 PARTS LIST — TYPE 515A...
  • Page 57 Mechanical Parts List (continued) % x ’ 2 6-16 PARTS LIST — TYPE 51 5A...
  • Page 58 Mechancial Parts List (continued) 6-17 PARTS LIST — TYPE 515A...
  • Page 59 Mechanical Parts List continued) 6-18 PARTS LIST — TYPE 515A...
  • Page 60 Mechanical Parts List continued) 6-19 PARTS LIST — TYPE 515A...
  • Page 61 Mechanical Parts List (continued) 6-20 PARTS LIST — TYPE 51 5A ®@...
  • Page 63 1 -------------------- 1 5=C2 PROBES THIS SHEET COVERS P6O17 010-038 43 inches Tektronix Part No. 010-056 010-057 010-058 2 ft. P6O22 43 inches Tektronix Part No. 010-064 010-066 010-067 010-068 Tektronix Ckt. Model Description Part No. Cable Length Value 43 Inches Cer.
  • Page 64 TRIGGER — INPUT ----- AMPLIFIER - ----- SCHMITT TRIGGER (RED KNOB) ELECT0 - \ TRIGGER (TIME-BA5E GEN.DIAG.) +300 * CONCENTRICALLY MOUNTED +300V +100 TO GRID, PIN 2, VHOA AUTO MULTIVIBRATOR (TIME-BASE GEN. DI AG.) IMPORTANT SYNC WAVEFORMS ARE IDEALIZED RUT CLOSELY APPROXIMATE + 295 THOSE TO BE FOUND IN THIS INSTRUMENT PROVIDED CONTROLS ARE SET AS INDICATED BELOW AND ON EACH...
  • Page 65 V!20E> VI20A VI&03 UNBLANKING C.F. + GATL OUT C.F. V 10 V 50A V 60 A MULTIVIBRATOR V 503 RUNUP C.F. (DECOUPLED) V 8OA DISCONNECT DIODES +300 V SAW OO H-OU C.F: VI20A DLCOUPLING i(,AN8 V 603 NETWORK. 300V MILLER RUNUP ruse VLQOA UNBLANKING PULSE...
  • Page 66 T ’ FROM CATH, PIN 3 t VIGOA TO GRID, PIN &, VIGOB RUNUP C.F. MILLER RUNUP TUBE (TIME-BASE GEN. DIAG.) (TIME-BASE GEN. DI AG?) CIGOA RISOA 470 £ FROM CATH, PIN 3, VI40A HOLD-OFF C.F. ----------- •- (TIME-BASE GEN.DIAG.) CIGOB RlaQB RI60A...
  • Page 67 V250A V270A V250B V2I0A V270B OUTPUT AMPLIFIERS DRIVER OUTPUT CFs.
  • Page 68 7410 A 74I0B TRIGGER C.Fs. 7330 7370 A 7340 7370b */00/ 7350 7390 INPUT C.FS. DRIVER C.Fs. 7360 7400 *300/ INPUT AMPLIFIERS OUTPUT AMPLIFIERS +I00V (DECOUPLED) 74 0 A *295 (DECOUPLED) SW30I ] ------------------ input selector 74I0B R4I0 \i 2 6DJ8\ ■flOQV R377 (DECOUPLED)
  • Page 69 DELAY LINE T YPE 5I5A OSCILLOSCOPE...
  • Page 70 ROOO < I OK > +3OOV -57"- + IOO 1 2 12AU7 RO63 !R552 | 6AU< CO52 ROOI -175^ SQUARE-WAVE CALIBRATOR SEE PARTS LIST FOR EARLIER VALUES AND S/N C HANGE S OF PARTS MARKED [~~~1 5\5A OSCILLOSCOPE 5-A-6I ALIBRATOR...
  • Page 71 VGG2 THERMAL CUTOUT R666 • ’ VT25K} SW600 +3OOV t270K^ ^6.3V 5A TO TIME-BA E GEN. +IOOV ■ RGBO ICOJC C6S0 BEL W j30K~\ R600 SEE PARTS LIST FOR EARLIER VALUES AND S/N CHANGE S Of PARTS MARKED LL-L-J 5-4 - <2>l VERTICAL INPUT SIGNAL NONE...
  • Page 72 +IOOV (DECOUPLED)
  • Page 73 V ~33K \ J J U25.J U015Z toIT\ 0068., P72? ±C745 •"t-0068j SEE PARTS LIST FOR EARLIER R.O.VZ . VALUES AND S/N CHANGES OF PARTS MARKED 515A...

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