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Tektronix 570 Manual
Tektronix 570 Manual

Tektronix 570 Manual

Electron tube curve tracer
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Summary of Contents for Tektronix 570

  • Page 1 Web: http: // www. pearl - hifi . com Ave. SW, Calgary, 86008, 2106 33 AB; CAN T2T 1Z6 Ph: + .1.403.244.4434 Fx: + .1.403.245.4456 E-mail: custserv @ pearl - hifi . com Inc. ❦ Perkins Electro-Acoustic Research Lab, Inc. Engineering and Intuition Serving the Soul of Music Please note that the links in the P logotype above are “live”...
  • Page 2 Verso Filler Page ♦ ♦...
  • Page 3 STEPS/FAMilY control and a push button. With the The Type 570 is also on excellent tool for the instruc­ STEPS/FAMilY control the single-family position, tor in electronics, both in the classroom and in the pressing the button applies the selected conditions to laboratory.
  • Page 4 As many as eight positive-bios curves can be included in the display. Eight quick-changing adapter plates are furnished with the Type 570 - 2 with octal sockets, 2 with nine­ pin miniature sockets, 2 with seven-pin miniature sockets, PIATE.SWEEP GENERATOR and 2 with pilot holes only.
  • Page 5 5 v/diy. y/diy. Yerticol. with 2ero point. ot center of sCreen. Safety T he extremely flexible operationol­ TYPE 570 CURVE TRACER ....$1100 2� setup facility of the Type 570 requires that potentially Eoch inst","lent...
  • Page 6 Verso Filler Page ♦ ♦...
  • Page 7 TYPE 570 CHARACTERISTIC·CURVE TRACER Pictures Dynamic Vacuum-Tube Characteristics II-i : ..Displays Family of Curves CRT Screen GENERAL DESCRIPTION characteristic twelve curves per mi Iy. Four The Tektronix Type Characteristic-Curve Tracer accurate presents an graphic analysis vacuum-tube Plots All '-mportant Characteri.stics...
  • Page 8 TYPE 570 CHARACTERISTIC-CURVE TRACER C ATHOD£. RAY· TU BE DISPLAY Vertical Axis-Concentric provide for se­ .� :.;� V{)� ;'),':':.Hr-> plate, lection of screen, grid current display; and se­ anyone ion of of eleven current-per-division v lues -0.02, 0.05, 0.1, 0.2, 0.5, 1, 2, 5, ) 0, 20, and 50 divides the ma/div.
  • Page 9 TYPE 570 CHARACTERISTIC-CURVE TRACER VOLTMETER VARIMlU built-in the positive nega­ \i�RIAf\1 ( voltmeter indicates H�AHJ( in seven ranges: ° 7, 14, 35, tive operating voltages 70, 140, 350, 700 of full volts, accurate within voltmeter can be switched show per­...
  • Page 10 TYPE 570 CHARACTERISTIC-CURVE TRACER Regulator amplifier and series regulator 6A N 8 Regulator amplifier ....6AN8 12B4 Series regulators ....VACUUM TUBE COMPLEMENT 6CD6GA Series regulator ....Split-load phase inverters p ply CF ....12AT7 Variable ....
  • Page 12 Verso Filler Page ♦ ♦...
  • Page 13 Serial Number TVPE OSCILLOSCOPE WARNING When the POWER-TEST switch is ON, LETHAL voltages appear on the 5'10. front (test panel) of the Type Tektronix, Inc. S.W. Millikan Way . Box 500 • Beaverton, Oregon 97005 • Phone 644-0161 • Cables: Tektronix...
  • Page 14 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 ranty mentioned above should be taken up with your Tektronix Field Engineer.
  • Page 15 Section Characteristics Section Operating Instructions CIrcuit Section .section .. Maintenance Calibration Procedure...
  • Page 17 General Description Peak plate-sweep voltage: Eight steps from 5 to 500 volts. Nominal voltages depending on line voltage. The Type 570 Characteristic-Curve Tracer Series load resistance: presents a graphic analysis of vacuum-tube characteristics under a wide range of operating Eleven...
  • Page 18 1 - 3-conductor power cord 1 6 1 -0 1 0 . - SN500 1 -up - Construction - I - Green filter 37 8 - 5 1 4 . 1 - 2 Ch aracteristics - Type 570...
  • Page 19 H i g h voltages can be present at the tested. patch panel. The flexible operational P R E L I M I NARY INSTRUCTIONS s etup facility of the Type 570 r e ­ quires that potentially dangerous Cooling voltages be available at the patch panel.
  • Page 21 top of the cabinet. On instruments with serial the rectifiers and other components. When in n umbers above 5000 the fuses are located on operation . the instrument must be placed so the front panel. Use only the recommended that the air intake at the back is clear of fuses for maximum over-current protection.
  • Page 22 G RID B and display the plate-characteristic c athode of the tube under test to DC. Set the DC Controls to minimum , about ten volts. c u rves of the 6U8 pentode section. Move the O perating Instructions - Type 570...
  • Page 23 It can be same type can be ins erted without s et to have from four to twelve steps going r e s etting the controls . O perating Instructions - Type 570 2 - 5...
  • Page 24 ST ART ADJUST 2-4. T ADJUST Fig. affect the S T Control has on the grid- step waveform. o Eg of a 6U8 Control Settings for Triode section Eg" Il" PEAK VOLTS SER IES LOAD STEPS/SEC r p = VOLTS/STEP START ADJUST .
  • Page 25 -1.4 -1.2 -1 . 6 .5 MA/D MA/D I V 10 VOL TS/DiV VOLTS/DiV -.2 O Eg - . 4 Control Settings for Triode section of PEAK VOLTS SERIES LOAD Control Settings for Triode section of STEPS/SEC VOLTS/STEP PEAK VOLTS full clockwise START ADJUST SERIES LOAD...
  • Page 26 lines can be eliminated by connecting the plate + 1.5 +2.5 to the + DC connector as was done to obtain the transfer characteristics. Tube Switching Two tubes or two s e ctions of one tube can be connected at the same time for comparison purposes or to speed testing.
  • Page 27 -.05 o Egl MA/DN MA/ DIV E g l 20 VOL TS/DIV VOLTS/DIV Control Senin g s for Pentode section of PEAK VOLTS Control Settin g s for Pentode section of SERIES LOAD STEPS/SEC PEAK VOLTS VOLTS/STEP SERIES LOAD full clockwise START ADJUST STEPS/SEC PLATE...
  • Page 28 -. 2 - 1 . -l.l MA/DlV 20 VOL TS/DlV Egr- a 6U8 VOL TS/DIV Control Settin g s for Pel1tode section of PEAK VOLTS a 6U8 Control Settin gs for Pentode section of SERIES LOAD STEPS/SEC PEAK VOLTS VOLTS/STEP SERIES LOAD ST ART ADJUST STEPS/SEC...
  • Page 29 - 1 3 - 1 1 - . 8 0 E g . 1 MA/ D IV .5 MA/ DIV '. 1 VOLTS/DIV E­ VOLTS/DIV Control Settin g s for Pentode section of Control Settin g s for Silicon Diode Ty p e IN 1566 PRAK VOLTS PEAK VOLTS SERIES LOAD...
  • Page 30 o u t of regulation. The amount of current parasitic-os cillation - suppression resistors which can be drawn in the reverse direction can have been built into special patch cords and increased b y appropriate external loads ferramic beads have been installed on the leads s uch described under Thermionic Diode running from the tube socket on the adapter...
  • Page 31 S C R E E N -GRID Control. The S E R I E S LOAD a pproach ground potenti a l . Since the pen- 3 - 1 Circuit Description - Type 570...
  • Page 32 V 65 A is raised so that V 6 5 A begins to conduct. a more positive position. The stepping wavefoIDl R85, The Multivibrator switches so that V 6 5 A is i s developed across a divider consisting 3 - 2 C i rcuit Description - Type 570...
  • Page 33 V 2 4 S A and V 2 4 S B , provides additional gain to of feedback and thus . the gain of the Step drive the crt deflection plates . The HORIZ 3 - 3 C i rcuit Description - Type 570...
  • Page 34 S E RIES Amplifier. LOAD switch. In the 300 ohm position of this To avoid this , a section of the C i rcuit Description - Type 570 3 - 4...
  • Page 35 Floating Power Supply. Shields voltage for the - 1 50 volt supply. This reference are used around the windings to minimize the voltage is applied to the cathode of a Comparator effects of capacitive currents. Circuit Description -Type 570 3 - 5...
  • Page 36 C omparator Tubes. The voltage at a tap on the divider between the output of the Series Regulator extremes of deflection. 3 - 6 C ircuit Des cription -Type 570...
  • Page 37 . thereby causing the instru­ m ent to overheat. Care must be taken to assure free vent­ i l ation of the Type 570 inasmuch as some of Visual I nspection components are operated at dissipation levels such that excessive interior temper­...
  • Page 38 Soldering to a t e r m i n a l . Note t h e s l t fillet of solder - ­ around the wire. s t ri p . exaggerated for c l a r ! t y - -formed 4 - 2 Maintenance - Type 570...
  • Page 39 General Soldering Consideration When replacing wires in terminal slots clip Two distinct types of ceramic strips have been u s e d in Tektronix instruments. The earlier the ends n e atly as close to the solder joint type mounted on the chassis by means of # 2 - In clipping the ends of wires as possible.
  • Page 40 Instructions section of this manual. All low-voltage power supply capac ­ itors should be discharged prior to If your Type 570 Osci lloscope fails to operat e , w o rking on the instrument. This m ake s u r e that i t i s properly connected t o a p rocedure must be used when work­...
  • Page 41 If it appears only in the refer to the Calib ration Procedure G RID position of the P L A T E - S C R E E N -GRID s ection of this manual. M aintenance - Type 570 4 - 5...
  • Page 42 NOTES...
  • Page 43 500 watts. m e n t s . 4 . Oscilloscope, Tektronix Type 503 or 504. In each calibration step only the required a Type 503 or 504 Oscilloscope is not information is given.
  • Page 44 . P r e l i m i n a ry P reset the front-panel controls of the Type 570 NOMINAL RESISTANCES OF as follo w s : P O W E R SUPPLIES...
  • Page 45 2. H V Adjustment w ithin 2% (regulated) or 5% (unregulated) of their correct voltages. While the Type 570 Oscilloscope is still in a position for access to the underSide, the HV TYPICAL R I P P L E AMPLITUDES will b e set.
  • Page 46 Move the TEST POSITION on the Type 570 is compared to that of the switch to the O F F position , the voltmeter will accurate voltmeter.
  • Page 47 Using t h e display obtained i n t h e 240 position after it is set as above). See the table below for the other settings of the MA/DIV Control. of the STEPS/SEC Cont r o l , adjust the CRT C alibration Procedure - Type 570 5 - 5...
  • Page 48 Turn the STEPS/F AMIL Y Control full the zero on your front panel in pencil or ink. c o unterclockwise and adjust the MIN NO CUR VES C alibration Procedure - Type 570...
  • Page 49 C ontrol to Position the spot under the far left hand graticule line. Now change the PEAK VOLTS S E RIES LOAD j umper from ground to the " hot" HTR connector C alibration Procedure - Type 570 5 -7...
  • Page 51 CRT G EOM P HASE CURVES VOLTS/STEP ZERO ADJ Fig. 5-6. 5001. Top v i e w of T�-pe 570 above serial number C 3 1 6 T310 TSO I T40 1 VOL TS/D1V BAL Fig. 5 - 7 .
  • Page 52 POWER-TEST switch ON after the proper heater voltage has been set. Adjust the Now adjust C 20 5 t o obtain optimum retrace following controls of the Type 570 obtain (a single line). 5 - 1 0...
  • Page 53 SECTION 6 PARTS lIST AND SCHEMATICS A B B R E V I A l i O N S C e r . C e r a m i c P i c o , o r C o m p o s i t i o n C o m p o P a p e r , m e t a l cased E M C...
  • Page 54 Replacement parts a re available from or through your local Tektronix Field Office. Changes to Tektronix instru ments a r e sometimes made to accommo­ date improved components as they become ava i lable, and to give you the benef it of the latest circ uit improvements developed in o u r engineer­...
  • Page 55 Parts List - Type 570 ELECTRICAL PARTS LIST Values are fixed u n less marked Variable. Tektronix Ckt. Description P a r t No. S I N R a n g e Bulbs B 8 0 Use 1 50-027 Neon, NE-23...
  • Page 56 Parts List - Type 570 Capacitors (Cont'd) Tektronix P a rt R a n g e Ckt. N o . N o . Description 283·51 8 C31 0 330 pf Mica 500 v 1 0 % 281 -028 C31 1...
  • Page 60 Type 570 Parts List (Cont'd) Resistors Tektronix Ckt. No. Part No. Description SIN R a n g e R255 308-073 10 w R256 308-072 R257 308-071 500 n R258 308-070 300 n R259 309- 1 1 2 1 00 n Prec.
  • Page 61 Parts List - Type 570 Resistors (Conf'd) T e k t r o n i x C k t . N o . S I N R a n g e P a r t N o . Description 1 01 - 5 1 2 0...
  • Page 63 Parts List - Type 570 Switches Te ktro n ix C k t . N o . Part N o . Description S I N R a n g e Unwired Wired SW50 260-1 28 *262-1 04 Rotary STEPS/SEC Push Button...
  • Page 64 Parts List - Type 570 Electron Tubes (Cont'd) Tektro n i x SIN R a n g e C k t . No. P a r t No. Description V 1 1 0 1 54-022 6AU6 1 54-043 V1 1 5...
  • Page 65 BLOCK DIAGRAM HORIZONTAL D E FL E C TION (SELECTO/2-) GRID HOR IZON TA L G� / l> A MPL IFIE. R V 2 1 0 V 2 1 5 v240 V241 V24S s£. RIE.5 L O A D , - - - - - - - CIRCUI T + D C S TL P...
  • Page 66 _ _ _ Str:. PA.i'T 5 FOil. "A' U ... I�R VALVf:.S AND S/N CkANGI:. S MAtt lt!:.!) WITH Iku. PAA.TS ouT L I NE. .5 Tt P GENE.RA TOR A A , TYPE 570 CHA R A C TERI5T1C- ClIRVE TRACER...
  • Page 67 '- - - - - E.P5/FAMI LV • • • • • • • • • i01:. I MPORTANT Non ON ST E. P G.�N DIA� .5 T£ P A MPL IFIER TrpE. 570 CHA R A C Tl.RI5TIC - CURVl. TRA Cl.R...
  • Page 68 HORIZONTAL AMPLIFIER P L A U - VOLTAGG SIGNA L CONNE C TOR. P FROM P L A TE PL A TE SWEEP VO LTA G E G RID -.S TE.P GRID FROM C A TH. P I N I . V/"O e.F..
  • Page 69 VERTICAL AMPLIFIER +300 V +IOOV TOP DEFL E.C TlON PL A TE R278 20 1<. R288 II<. VfRTlCAL R271 - 0 . "7 '2. P031 T10NING ..2.7M - o .' � R270 .5001<. R279 R 272 II<. -15 0 V r - - - - - IS O V Z R.
  • Page 70 CRT-DISPLAY SWITCHING MA IN P OW!. R +4 00 V JUPPLy(JNR£6 +0 C - CI/lClJIT 5E.RILS REGUL ATOR � SfR/E..s LOAD I r -- , --. PLAT£.­ r--T - ---- -- _J.. . - PLA.TE-SC /l.E.EN-G/l.I O ££ PLAT£-SW££P .5WE.LP �...
  • Page 71 PLATE SWEEP & METER - - - - - - - A 1<. VOL TS I SW401 V3 10 T 310 I3AL. c.F. CIIRRl. N T .300 1; / R 3 / 9 /. 5 1<. II<.. R.32Z R.J21 'l S V /c 2 1<..
  • Page 72 POWER SUPPLY V470A V495 jEllieS V4108 V4� 9 .SERIES COMPA 4ATOR REG(JLATOR COMPARA TOR REG(JLATOR 11'4 8 3 )/ 8 3 ;;�:�� .s b V495 R49.s 1284 + 2&", q:z=>-, ·.JOOV -.JaW ·��OV r EL E V ATE./) V484, R4ee leOf( R4'2 TO V48.J,...
  • Page 73 FLOATI N G POWER SU PPL Y T5 01 7-45 C50i' (lNRlG R505 C505 dOjJF SIIPPL lE.S 'F ' DE.SIGNATES FL O A Ti N G V505 - SIIPPLY V50 6 FLOArtNG RE.C rtFIER.5 COMMON INPIIT T401, C506 TlRM.5. d0 .)l' MA IN POWE.R UNRE.G - SIIPPL Y...
  • Page 75 MANUAL C H A N G E I N F O R M A l i O N A t T e k t r o n i x , w e c o n t i n u a l l y str i v e t o k e e p u p w i t h l a t e s t e l e c t r o n i c dev e l o p m e n t s...
  • Page 76 5 70 PARTS LIST CORRECTION CHANGE TO : ( nominal value ) 12 k R541 304 - 123 S e l e c t e d TYPE TENT . 5 5 50 0 - 1 mAmp 149-0023-00...
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  • Page 105 Special test equipment, if mentioned, is not available from Tektronix unless it's listed also in our current catalog. This special equipment is used in our test department to speed calibration. Usually you can either duplicate its function with standard equipment in your facility, devise alternate ap­...
  • Page 106 (10- 3 ) tubular ( capacitor) unreg milliamp unregulated . �-{ volt maximum variable megacycle megohm watt wire wound millihenry x-former transformer ©, 1964, Tektronix, Inc., P. O. Box 500 Beaverton, Oregon. All rights reserved. 2-5-64 TEK 570 PCP 570 CALIBRATION...
  • Page 107 300, 200, SO, and 20: ±2%, max NOT INTENDED FOR INCOMING INSPECTION 100: ±.S%, max 8a. RANGE D C VOLTS error (read on 570 meter ): We initially calibrate the instrument to factory cir­ ±2%, max cuit specifications. These specs usually are tighter...
  • Page 108 2 b. STEPS/FAMILY range: 4 to 12 steps SINGLE FAMILY HEATER 24c. Error: ±5%. max. PEAK VOLTS 2 6. PLA TE SWEEP AND TRANS CURRENT BALANCE 27 . GRID AND SCREEN TRANSFORMERS '28. 6U8 DISPLAY RETRACE ACCESSORIES THE END 2-5-64 570 FCP 570 CALIBRATION...
  • Page 109 FACTORY CALIBRATION PROCEDURE CALIBRATION NOTES EQUIPMENT REQUIRED Test scope 530 series Tektronix type scope Tektronix type type fast-rise dc plug-in unit probe Tektronix probe Test accessories 016-006 pin adapter plate 012-0 29 Patch cords, banana plug both ends Patch cords,...
  • Page 110 Check gap within phosphor area with special crt face tilt checker: 1/32", max. Straight _1_ -=rl _ 1/32"nia� 1/32 1/32" max Tilt Concavity Convexi . t y rrtp Tighten crt cla � 570 CALIBRATION TEK 570 FCP- 2-5-64...
  • Page 111 CALIBRATION NOTES Graticule lights graticule on 570. Check that Place green filter then graticule positioned. lights are properly Meter major cracks around mounting Examine meter for studs. PRESETS External controls FOCUS INTENSITY ASTIGMATISM SCALE ILLUM Voltmeter RANGE DC VOLTS INDICATION...
  • Page 112 117 v ac -150 27 K jack error: ±1O%, max Check the -150 27 K jack on the teSt panel for 27 k; ±2.7 k, max, resistance between the jack and the -150v supply . 2-5-64 570 CALIBRATION TEK 570 FCP...
  • Page 113 Measure resistance between and test panel P jack. Check as follows: resistance SERIES LOAD ±S%. error: RESIST ANCE OHMS 7500 17500 47500 10 k 20 k SO k lOOK lOO k 200K 200 k 500 k SOOK 570 CALIBRATION 2-5-64...
  • Page 114 NOTES CALIBRATION POWER SUP PLY A pply power Connect 570 to variable line voltage source. set source to 117 v. and turQ MAIN power ON. Note both power indicator lights are on. -150 Adj (R413) +lOOv at DC+ jack: Calibration· accuracy ±.
  • Page 115 GRID A -125 v* GRID B -150v -150 27 *These readings will v a ry with the type of meter used. Simpson 262 reads approx -75v and meters with 250v range will read approx -HO v. 570 CALIBRATION 2-5-64 570 FCP...
  • Page 116 Meter accuracy error: ±2%. max Connect voltmeter between test panel DC+ jack and gnd. Check 570 meter for proper dc voltage reading ( ±2%) by comparing against test meter as follows: S et VARIABLE +DC fully ccw. Set +DC to 200 Set TEST power to ON .
  • Page 117 570 meter indicates more than ±2% error Check RANGE DC VOLTS accuracy as indicated on Trouble may be either a bad meter or meter 570 meter. Check +DC accuracy on test meter at series resistor DC+ test jack. 7 v can't be made when VARIABLE...
  • Page 119 INDICATION GRID HORIZONTAL HORIZONTAL VOLTS/DIV range dc volts Adjust VARIABLE +dc for 570 meter indication of exactly 140v. Take into account meter error pre­ viously noted. Vert Gain S et INDICATION to HTR and position the spot to bottom graticule line.
  • Page 120 CALIBRATION NOTES VER TICAL MA/DIV Setup Adjust VARIABLE +dc for exactly 100v on 570 meter. Set INDICATION to HTR and VERTICAL MA/DIV to SO. Position the spot to the bottom graticule line. Plug the special 570 MA/DIV switch checker into the DC+ and K jacks on the test panel.
  • Page 121 Gain for exactly 10 div of defle ction . . 19. VOLTS/STEP ADJ Setup HORIZONT AL GRID HORIZONTAL VOLTS/DIV VOLTS/STEP Volts/Step A dj Adjust Volts/Step Adj for one dot per major grati­ cule division. 570 CALIBRATION 2-5-64 TEK 570 FCP...
  • Page 122 6 steps (7 dots) to the right of graticule center. A d just the START ADJUST knob so it s index points to "0" on the front panel when the first dot is at graticule center. 2 - 5 -64 570 CALIBRATION TEK 570 FCP...
  • Page 123 Turn STEPS/FAMILY full cwo Note at least 12 steps (13 dots) on crt before the generator drops out. SINGLE FAMILY Single display Set STEPS/FAMILY full cwo D epress SINGLE FAM­ IL Y button and note a single display at least 13 dots. 570 CALIBRATION TEK 570 FCP 2-5-64...
  • Page 124 7.0; 9.9; ±2.5 minor div 7.0; ±1.9 minor div 8.3; ±2.0 minor div Return HEATER to 6.3 and set VARIABLE heater to 100%. Remove jumper between P and HTR jacks. 570 CALIBRATION 2- 5 -6 4 TEK 570 FCP...
  • Page 125: Horizontal Volts/Div

    5 or 7 of T31O. Ceramic capacitor C316 may be con­ nected from gnd to either terminal S or 7 of T310 or removed. Adjust Plate Sweep C311 and Plate Trans C315 for minimum trace width. 2-5-6 4 570 CALIBRATION TEK 570 FCP...
  • Page 126: Vertical Plate

    SCREEN and GRID positions of VERTICAL switch. These adjustments interact, repeat as necessary. DISPLAY Presets TEST power PEAK VOLTS SERIES LOAD PLATE VERTICAL VERTICAL MA/DIV HORIZONTAL PLATE HORIZONTAL VOLTS/DIV VOLTS/STEP STEPS/SEC INDICATION HEATER V ARIABLE heater 100% 2 -5 -64 570 CALIBRATION TEK 570 FCP...
  • Page 127 With a display of GRID A curves from previous step, set HORIZONTAL VOLTS/DIV to 20 and 50 while adjusting C205 for best min retrace in both positions. Recheck operation of SINGLE F AMIL Y button with STEPS/FAMILY full cwo 570 CALIBRATION 2 -5-6 4 TEK 570 FCP...
  • Page 128 Black patch cords, banana plug 012-028 both ends. Red patch cords, banana plug both 012-029 ends. Fuse, 1/16 a 3 ag fast-blo 159-024 159-025 Fuse, 1/2 a 3 ag fast-blo THE END 570 CALIBRATION 2- 5 -64 TEK 5 70 FCP...
  • Page 129 Maxi approximately +400 -15Ov - (unregulated 4 . 5v +lOOv -- 5mv +400 - .5v (floating su p ply ) +300v - 30mv (usually higher at 105v -300 .5v (noating supply) ac line ) January, 1959 570-1...
  • Page 130 10Sv 125v Check regulation all supplies betwaen ac line. ADJUST THE HIGH-VOLTAGE SUPP L Y. -1100 Set the crt filament Check hv regulation ADJ. -170Ov leads. maxi intensity. CHECK RANGE DC VOLTS OF VOLTMETER METER AND +DC AGAINST STANDARD SUPPLY. With an meter on the jack...
  • Page 131 T he horiz ontal gain a nd the se t t i ng of R227 Check all po­ and 1 5 must be rech ecke d unti l all inte ract ion is mini � ized sW1 tch . swi tch aga ins t the sit ion s of the January, 1959 570-3...
  • Page 132 1 . 0 8. 3 PLATE CHECK SWEEP PEAK VOLTS SWITCH. and PLATE and. LOAD With the control SERIES HORIZONTAL PEAK positions check all VOLTS switch for the proper hori­ zontal denection. PEAK VOLTS Deflection 10 divisions January, 1959 .570-4...
  • Page 133 CHECK VALUE OF SERIES LOAD RESISTORS HO RIZ O NT AL VOLTS/DIV control at PLATE, measure resistance between pin With the V3l5 C heck and the P connector on the Test Panel. positions of the SERIES � (±5%) sistance as follows: switch for Resistance SERIES LOAD...
  • Page 134 Verso Filler Page ♦ ♦...