Tektronix B070 User's Manual
Contents
1. wre mern ne ens ng Aree dn snnt P mene A Mas ed ol ee Seite ester CN BEL PR ANIMS NEAN tee A a Leet AN paina O wien ete instit uen enata t I lane Aide tapes Ave sean cent its geal irt tet tne aS at NETT npma a SATIN TORTE ALERT NE cette a De tat ADU eS REN Sard tae RR Mtm cts ETE AAE EDT BERGER E M A Ean IY BEN NN irt NN asta HUND NN ANTI EI NI a ee rmi iriure rne EA ANM ver TRESS NA ASA EP A A TNI Rae A Net AE ANTA uM E EVENT ESE TN RANT TAS IIIA NNI A LA Ner E TU IM re ede a PA edd Ga AIA ON ANI I ENDEN SEE NIE eet D aen eee ERENTO AN Aere SA B M PAPAS ESA eS v D t IM O EN VOTE NOSE Sal E EI RD SPI TE MM e RI NV AA PESOS MALATTIE APR perenne ATMs ci AINT een 5 iD sen A Eee SEE A T Mee TE AN AV x ANTE Es PSI iv NET ESTER teat e ee e ene E EIA RIAS RES IES CO DENNIS A GEN VAN M e LIT BINNEN ERSTER s RH LEGEND T E QUT MA 1 ME AER AD LATA E IRA TRAN IR AOS AAA eere e uid See NETS EET TIENE Ne Ned SAT cu TPA SRSA AST een Shs Betis AMD MIN Eagle AA NEM UA MM e INIM EER ee V x A K EE Ii OSA O EDT LS AAA ES o PA EN ENT BE N D 2 REN T IAN ALS aah ee oe nos 6 S DEDERE QUEE n Sa o eh eee M H ES tee efr ipee ipa 3 referees Ae INA NM DEVICE AE Speen ease NEAR CAM ARAS SE e TA IRAE H i M IDA TP IW ETO eme Ti p BR AIR VT VAS EH Mer a rr NP n v a H iD DEEP HE EH Puis fA mee Ll i Moa TECH h y MAS y TN I ar DISM B gt XE SERN EI NT tH y X 2 i s M A AN nr am NA A E NN MR DATI NIA MIS A ESRI i es HM A CE MI2. T Qualified under National Safe Transit EE Committee Test Procedure 1A i Att _ O AT A RY AAA PER LT O EEE PAN IPEA APA PAP Ma hii Transportation Te yi ae M aM PUN 176 I be found at the rear of the manual is section wi th f any affecting ion i nformat ange Ch INDICATOR LIGHTS 7 AND CONNECTORS CONTROLS INSTALLATION tor ica trois ind the front panel cor all The functions of the Type f ide the 176 urn of the Type 576 t Test Fixture and sl n dard al i n the 176 ta insta move the S To 576 1 Hn Lu to ene N D u a Q Uu z O pa Se o E 2 O i x O c c E 2 o E qe w 5 ot p qm G m 2 ma l 4 gt 3 m p D a 0 ij Pa E Lo pdt DD T gt SE Sw Qc LY wer Am o O mu a Y TU JE oo I Li p o c So c o X mio S im e th Qn oe o Do gt S Quy wom ox 4 d Ea hten t 76 ace 6 front hold the 17 lace To curing sci IS he 176 when t g in pl in p power output of pulsed Select peak WER MAX PEAK PO 1 of the the al ews ON e ixture securi the two f Each button lights pply SU essed llector co Buttons TTS WA pr when ire ent requ onm 18 ing env at COOLING The 176 has the same opel Ek
3. GROUND Jack A recessed sliding contact on left side of the 176 which grounds the 176 to the Type 576 chassis to prevent shock hazard Ground Connector GENERAL DESCRIPTION The 1 6 High Current Fixture extends the testing capa bilities of the Type 576 Curve Tracer Using the pulsed mode of operation a device can be tested with pulsed currents of up to 200 amperes Since these current pulses occur at a low duty cycle a device can normally be tested without the use of heat sinks Also the chance of damaging the device is reduced Pulsed Collector Supply The 176 pulsed collector supply produces current pulses which are either 300 us or 80 us in duration These pulses are synchronized with the step generator output and occur at line frequency rate 60 Hz or 50 Hz The voltage ampli tude of these pulses is determined by the Type 576 MAX PEAK VOLTS switch and VARIABLE COLLECTOR SUPPLY control Three of the MAX PEAK VOLTS switch ranges 15 75 and 350 are available for use with the 178 The Type 576 MAX PEAK POWER WATTS switch is dis abled when the 176 is being used The MAX PEAK POWER WATTS buttons on the 176 provide power limiting of the pulsed collector supply Power may be limited to 10 100 or 1 000 watts The Type 576 interlock system is also used in the 176 When the yellow Type 576 COLLECTOR SUPPLY VOLT AGE DISABLED light is on the pulsed collector supply is disabled In this case either the protective box or th
4. A Ne tet V TTA MATT fiM A v areas S 7 7 SB ANE SENE HERI I FIDA A MA VIDA PEE EEE ER M fa 5 SA Ve entere i x t le ANE Aie IM Tun J Meere Sree ES SS Y SD Meee ee I ES UM E ME S MY ORSAI OS s Se idos T zu RES ASTA Sofies o i M S js AS e ARIETE y n OA N NUN Stes gt SEE MASA WA i 230 ARE SN Re Hy MY t 4 e A ae RIPE SEE MAS 2 f S Pb S eA XII 1 K s E A DAE M e 73 TQ PUE 5 3 5 SENG ARE E avs y SSeS O ER sere wes e Xs age ene SN E Maroto Be VITA Ey A x spite PAL AINT E DAD SAT e AP NS S TAT ee SAN ARS Md ERSTE ENTE A TAS e INN Ted ive it ee h HERR BEER e asta RER ea anal gt ER fMi COS v tal SER MARRON IUSSIT NT tA RE Ss SONNE MELDE ny WTYe DS EH It OMA PES vt A An T AS VIVANT PI R D eit Ve KALTE ne DI TEN 5 TAM NS IA T BELLY v OIN a PATETAN NTA ASIN EN MSI s D i iE NY Stents y gt ET AIN ti A gt i ZEN AN ANSA HS 1 ike Ie 00 E ez A 1 DES od AS A t A MAN EHEN V ESTER E ine x v ETS B 5 RE a 5 NM DU p TERN d t E EX 5 RETA S ES were ER 8 ERS 3 5 SRE JU SENE SPAS AA x T2 PV s ei MEAL Aen PIETRA S t IS SEE EEE sass ER AO LAN MEET NODE EAD d AES T SRE AN NER SN pus iM RASS ES A MENS VEA x x t RA SER y MN er eH V VR EARN N A M i a S n TS wt 3 KD SN IER PSMA E Wein Neues de poe pe gt N EL M n i S MORN Ce WAM ODE O breve TAS 1 BERGER D i ANS X Syri i POS TRATEN CONTAC ES EM ERE ae MESA en DISSE RENNES ANNE ANI DN SAN DIES VENDUE RARE IA A A ENT
5. DELE PIPER Rt ISE PRA Eee i ae Peis te E IMPRIMIR ee De DEL NUR DA prn VU Era ee ee d tenet NOE ES EAS oO EDREIRA A o SFR ee Pe ARE EEE INR 4 m d Pv E ai aa ETE AT A Vit ner Inc EORUMDEM LN Mi PU TAS EUR de one Kirsten E cur erp NR ri e righ TES M MT DUE E ate ars Cop yn t E 1 9 70 bya ektronix Ine Beaverton J Hh Dis E 2 eles UL S er is E RD DUuiWU regon Pri nted dn PR eM tene reed ul 3 merica pU p M E ABIRE Oir ida tion may re Diss odie NND CDD SS ers XD LECT S l Pigh om rie ul cS a T Elo ar E E W DUX EN ne Pan ER De teat pum a p D ws EHRE e EEE watts e TI NM elt eu va Sm Ca EOM et estem aem n m ANN rer A a A i A E H H vox a Ey E Be 7E 2 p H acm tt t E LINE I M H M ri NC NS y ws 5 CIL DAR ra E TE P we eae ee m me et ara San LECT E K E g t EA a 4 18 LECCE t Ei did R arg et PAN ar wire no CET u s A E oo A Information necessary to operate the 176 in a Type 576 is provided in the operation part of the manual This information is divided into two sections 1 Specification 2 Operating instructions The first time operation procedure in section 2 allows a qualitative performance check of the 176 operation For a quantitative check see the performance check procedure in section 5 Change information if any affecting this part of the manual will be found at the rear of the manual 176
6. VERSES AUTOR TA TER NN ES CAPRA M M Eq Ve T iN eges RBS EXT seek Me IND UE 14347 D y FE E Eee TS SAYA DAA I ae STR MARES V be AER eI LO a DAVIS D te en NN UMEN nenn EM iria VEA a ipo gt i Do Te p vw De et p s rire Y LL tnmen Me ame a depen DE eret ed etree MER ogee MASEL Qui esas fe ne A x S Qs NAM Modius n arsenate SESE Seas M Uae en aes ids SCHERE qiie Egle eer 5 H o TO HE WE VIN h e v Ea HESS ES amp nn ee rts epe aas N WESER KEN SET INE TAN EINEN AT af Sy Mee Een ERAI SS Re ett SESS ii CORP O EN IM Mess E peon A V IPN m I Tante UM ee tet ines s F ertet M Het UM S Murs Ae PERS IN ANS INN MINAS ye Nj D AT v SRE E OA ERE DH MU ERE REIS OOS ATARE AINS NEE EEN AS fee vo ne eel e REM 2 M Ae a er sam EDEN Eta WES TAREE OE EN Nito ta Stee NIA tex SRE RASSE SURE ene EINEN UERSUM ear eae u genes E E U oe woe g VP tae iud pL PA MU A URN G n a Lenten ien siegu ol TR RAS ep C REN Rum BEES TASS EES O ae AEG IA we cates Haase u Peg aes dee N ES Le WER A EEE EEE N RS ARIE MEER D DEREN APE t alt SAREE VET MS owt are EA E NIE NEN ES a d SS DEA Mua UU A a INU m Ce b DE tM 2 een ta ie Ne E MISSA SIRENS AM Ue Ars 5 MU E f DUNS QW eee Tut tae UE v AARAU AN EE i MINIT et t Le eg peas REN meetin ERE HS A S T Tenmori ravings Cece GREK CT Blige Seremoni f SEE Fee eM ee Sio NC ARSENAL E VID T MT MARIUS TEES MEE MM ANTENNIS EE SS SEN EEE prb eL teh Sees mE Mes M i A MS a am anne am P ae NITSWSIFUVAINA A IME H SEARLS ART
7. VOLTAGE DISABLE light goes out the red WARNING light goes on and a display re appears Pressing the INTERLOCK OVERRIDE button when the protective box is not in place enables the collector supply and makes operation of the instrument potentially dangerous Operators should always be aware that when the red WARNING fight is on dangerous voltage may apnea at the collector ter minal 16 Release the INTERLOCK OVERRIDE button and close the lid of the protective box 17 Pres the 1000 MAX PEAK POWER WATTS button Note that the maximum peak power being dis sipated by the device under test lc versus Veeg increases 18 Press the 176 10 MAX PEAK POWER WATTS button Note that the maximum peak power decreases Press the 100 MAX PEAK POWER WATTS button 19 Set the Type 576 AMPLITUDE switch to 5 mA Note that the 176 X 10 STEP button light go s out and the step generator step amplitude is no longer multiplied by 10 times 20 Set the Type 576 VERTICAL switch to 50 mA Note that the 176 X10 VERT button light goes out and the vertical deflection factor is no longer multiplied by 10 times This completes the first time operation procedure
8. a y l E O ue wv o v lt m pets Aer Km o tH e Q Oo 0 P und o S D e v Ur o Q t gt e 0 Itu c D c I 5 cc Q T c OH be PE LH gt e ape x Eu 9 Z ES TH p Em e c E e bje wy OQ m E DE La Li 4 ic a E te D ies o o ic g3 Q i 6 E gt o c SS ae 0 Pe o nun qa T er eo eO m if o EL gt b Nae Fe rn o A Sg u e a 5 ee ui en E Y a E X nac HM wi O E uut o gt AZ 2 A Co 9 I cal re fut ace o BESS mus WS E GRIS 3 a ENS E m E AUGE AS EUN e US ER AS 2523 ER LER 2 AVI PASS LANE C YE BR duro SA UAE SE gs TN AXES hts and necto Fig 2 1 176 front Ig rs s con t button pane Operating instructions 176 VERT DIV peas indicates the new deflection factor The button fights when pressed The light goes out and the deflection factor re turns to normal when the VERTI CAL switch is turned clockwise beyond its five De current posi tions When pressed increases the step amplitude for the five highest cur rent positions of the Type 576 AMPLITUDE switch by 10 The PER STEP readout indicates new step amplitudes The button lights when pressed The light goes out and the step amplitudes return
9. ea hat Moca ae zi T ERAS TA ETA AR AS BENENNEN wei iste Eccc s ud ES MS MAT RA Ie teli E a E DUD RATES dor WD NEED f an AS AE PER pii surest tme ate cbs wee tae une tt II EEES E See cer ES M um u ELLIE Te SRE VISLM WU SES Ui SUR es xxm PCR DL MU FICA Farc U TERGUM TUR CERIS MEINEN MUR Suea d A AA DIET DEG ye Us en e URES RE RUE CELLS D NEN TEESE es wo te ea ote y D A Aui repa iA ere it tir ate tent eie HEUS Bp na DADEN Waleed BEY Aegan MOROBEWWANAYNO 0 EE BEER E EDAD TN I ARE reli we gee ET UES Ut Hee aS WL See RENT ae Se MS us SEE mm a MEE T m EU a rmm n Ms LORI Me eth tuetm hse tinum n nn nn S ne II H Ve RYMAN Ae Ce ANS iere 5 WSS iets AW mae pee ee 23 2 ER ene terete AED alu Eg ERS EEE arg ica pe rk E ME CPP ranch Me gt orte nenne ttn eet ott una og Kung am B 2 os s A EE DE ERE ve il s quU TET e ie A Rie ite amp oWMMMAXS NI e Tes D e IM rl u VE RCADNADGBA M Mur DENE pation MEATUS qe e SN WEES M EE E ES EEE N mato da ie a et gi P Ep EN velt ini ig ne gi MEE Meis DOS eoe IUD TES REIN aia aga INE ec SE ur ate Er IN a DA Art a alli roa Ine en len ur eu ne a en un z ef JU ERA wk ee ATA AU SEES rete Zt Bahasa REDE cip SERIE MES lentes iste ooa ace Eas M mU set LA E OE PME CER LR MD Merge D d enam ieu VISITS INE SER a E Wee Rules eee oe OS rer AR WEEE he OM Satine aC LI ps Te Bottega Se Vra Ma gh DT Te N oo en ay Maen ge A pA t GERM RL MSS USES nA u TA TROR Mior SEA U ST E Ar gt MES by B Ene ae tee Al sl en
10. line into shorted load is 200 A for 15 V range 40 A for 75 V range 8 A tor 350 V range Pulse shape ES Within 2 of peak collector supply i voltage during display unblanking interval E 80 us 10 to 90 A A te SCREEN nora 10 us 90 to 10 ns Maximum Peak Power Output 1000 watts 100 watts or 10 watts l Varies with line voltage een a en OE aed Nl d a Risetime Accuracy Current steps and t inated 5 highest current AMPLITUDE switch setting between settings only offset incremental accuracy X10 STEP button not in Hefer to Type 576 Specification illuminated mE XIOSTEP button illum Within 5 of 10 times Type 576 any two steps without Type 576 1X STEP MULT button pressed within 10 of AMPLITUDE switch setting with 1X STEP MULT button pressed X10 STEP button not illuminated Refer to Type 5 6 Specification X10 STEP button illuminated 5 Within 3 of total output plus 1 of highest current settings only ten times Type 576 AMPLITUDE switch setting or 3 of ten times Type 576 AMPLITUDE switch setting whichever is greater Nominal Step Amplitudes Eb X10 STEP button not illuminated i a an a Refer to Type 576 opecification P Ll I Lad MA Pe PPT RR I TE X10 STEP button illuminated 5 Ten times or one times with Type 576 highe
11. to normal when the AMPLITUDE switch is turned counterclockwise beyond its five highest current posi tions X10 STEP Button Enables the pulsed collector supply when the Type 576 COLLECTOR SUPPLY VOLTAGE DISABLED light is on It is pressed when the protective box is in place and its lid is closed interlock Switch WARNING Light When lit indicates that the pulsed Red collector supply is enabled and dangerous voltage may appear at the device testing jacks INTERLOCK OVER RIDE Button Enabies the pulsed collector supply when the Type 576 COLLECTOR SUPPLY VOLTAGE DISABLED light is on As a safety precaution the action of the button is momen tary p x WARNING u When the protective hes is not in Blade pressing the INTERLOCK OVERRIDE button makes operation of the instrument potentially hazardous Operators Should always be aware that dangerous voltages may appear at the device testing jacks when the red WARNING light is on Allow connection of Tektronix made 2 3 or 5 terminal Test Fixture Adapters to the 176 The jacks also accept standard size ba Device Testing Jacks nana plugs for remote testing The jacks labeled C D and E are collec tor base and emitter jacks respec tively The jacks labeled CSENSE and ESENSE allow Kelvin sensing of collector and emitter voltages 22 BASE Jack Base steps appear at this jack Provides external access to ground reference
12. tr ee ADV E EN NN m NEST SIR SEHE TS ep C eR p AM NIV AR NNNM T NEN A ASA NRI PUE gt Mayet 3 NIA A NNMERO TUI E we PY VENIM E A te ae AN UNAM NI gt TINY RENE N Sd MO COND eee m A TAIN Ret AEs IM PE CTR REN th PAE NS PER E CIAO r ERSETZEN RS I irm MINAS OIM PONTI ERIT EN ATA O TOP TER aT NEZ e ENS ANM PIER i Don ERAN RI RET Mar E IDA eae BEE OM INE Vii ATA zt RUEDA ASI SEMEN REIN RR 3 SEPA ONSEN RE eee ISTAM N etwas sere S Ye ACT MUS IS VIDET REN LANG SE IUUD Wim eee Ee al i A NORA ant po 22 SY DUC PAZ ee qn AN RT 1 AS ATTI SR AS BON EHRE TAS Ry PEN T NAA ena give rene ANE TA ARENA EINEN MEE AAN BEE inh Thiet LARES TONS EA ru 5 MES BEERS sas N NAAR ARS ee M eg seeders tea V on v af 5l eA et ANI SEHE ARA traf fS EM fy gt ei Oeo gt tes LARSEN CENA No sc nee ATEN AeA AG en E d E ER FERNE Been SNE ay RER S SQ A ETIN Ra GONE RS A SENTIT A ISO ESAE z SAPO AT BEE Su REES we e x P SUIS y ARE RN Y NEU IASON T As FERNE re gt A i e nA x CARITAS H i A NC SES S PEA EEN 1 H ar M sf 7 x TANTAS LM A AMEN ANTT N ve i S AS Y reas EEE A N ae BS EU HERR Br DIEA IDEAE INT ETERS v MAR A ANDRIA PAS Kr s BER MA A TR Yt t t c FREE MARI ene t M jd Cig ANTS YE IIR ANN A NEAN NEU e S Seeks See es QAAE T ME BIER ADS E s T e TEEN e a CI fee P TALIA IT Y e RUE LEAN I NHAU sa NATL E IR ALAS DEAN IE T ONT ATTE TNT NA 3 ei x EE PDA E E G ESA VEM AMMIAN ARZT EA PITE ARIS NS PISIS DANT qon ie SOT EE EEE TS
13. 00 setts ux DS A r Y RE MA p n is d ISO INC MA eT URS M CMASN SN EAM A Na SENT Se Vest EA eka ae WIENS Stes AM Meek ee orate AROSE TSS BRR VAISS BEN Binge et iad Sama LEISTEN nine SHSM Tansee uin MT MY LN E t gt SAITO NEE Sa ae AAR Ve SEEN BI SAME SESE Te Minnis Tek ist A EA O T em EEE eR cones Nea SED MEE NS NIME TURN AT RER BE ne LES ENTE egy ees unt ene erdt IRAM ENT X p E B K ein AEE Re Ape AM MEANS NASA NEE EEE ZELTE AMT DIEM OPES ME At RENI EN E VIE PES ines EE AO SER TESTER wes SEN MESH re UY unen se EEE e 2 ENDS MR H zx d VN EAT eit Ye ES EN SER y e E yey H r T a a EI Wl EA oe SEAS Nana Mei A a EIDE EANAN AAS Nu RIA SAN gay x SEE MISSAE Swe re a A ei de ODORE ou UENIRE 25 E M Me ee BSH o Savane Ci ii Hom SES IAM VERI AUR ehh SA re No DENS A GAD do MS th RER MA Am MEAN AS SNES nae Attics A Aera AMT 3 AN EAS SIN H iT SERE e rA tt vet rn Y AED iS E 3 TEES RRIAT fio AS Te RES NNUS MT BONES EEE TER ERS TTS YI NEI RE MAS DM MURS QNA e I Rn RAE ene eee Bern SE od tive E 111 CAGE NU 45 Spay LUE WAT Hee ra N Paes ARENA x Psi AN AN EEE PALE ES NAN AS AE RIAIN DYD T ETA SA ni NATAS ES een ate MTS ES e M d ES s NS 2 MEER ERROR AE SA TENE NON ARRAS I A er T AT TD ER MUI MAE Mine Ty AMAN ES PAGERS Hort n C M ASIE URSINI ICE T CETTE REN ES CES qu t3 EEE Wn NEM ee DUE M T SS d ESE rare E T wee aan Se Tans IAAL CER a Se te a TESI SSB Don Wak Renin Hes AAA PAAR RE GUESTS SINT It Ot Gig oN A EES ANACO ATAN Bate E pati Be et R
14. 1070 dE HAE EU E TIAS Tektronix ee 0 pore EE EU l e uc g i E t l 4 amp Eus P i A E 2t cS 2 23 l B a l pot i E i O Aor tn 5 RT mn o a E Be 15 gra i RE 9 er 3 e RL S Eus d a B Em ar 500 2 Box Inc P 1073 00 Tektronix 070 BEN MEM ee TA ROU TER NSSGM MS Wert Di illt vtt A AN teet tnl IMEI io cia eres CC EN Pa SPP BER e en eie ASPE ERBE ER Sean er DERI t r d DX LEST a A ROA T eats B AS Ee ase am sia S eQe To eke ete HH APO SE LS e Med pic en ig eei ER t Rope ren MOTA T ent Fiber Con Eeteen teen att ae a ee Nae nel d t Dune Se Sra Ota tet an A VM Metu tt etuer epe ne ss S RASEN s ere riy En an Eh De EEE Rer a N TU V VET Dn FE hae WISE PEs Roe A E een ty see eee te TUM Yate TU A IE i PASA IRATUS qM et ne CR ae ow AI uide ett eei AAT M ISTRIISQIWSAT M DD EERE tM ei un uu MS Be A Cn EY Mene Vemm lemen eg en VENIM ESSERE ANM e E E Metrtte t e iD ESSEN DADA Des QELS ES IE eee wie tee o a A SE TS Ca T e e eli be esate seen atte tad Settee see
15. 576 both instruments operated in an ambient temperature of between 0 C and 50 C The electrical characteristics are listed in two catagories performance requirements and supplementary information The Performance Check and Adjust section provides a pro cedure for checking the characteristics listed in the performance requirement category The characteristics listed in the supplementary information category are pro vided for the convenience of the user A performance check procedure for the Type 576 is available in the Type 576 instruction Manual TABLE 1 1 ELECTRICAL CHARACTERISTICS Collector Supply a Performance Requirement Characteristic Form of Output aha a AA LAO A TY naar Repetition Rate Polarity Amplitude Ranges Peak Voltage k Peak open circuit voltages within 425 and 5 of Type 576 MAX PEAK LO VOLTS switch setting for 75 and 350 Supplementary Information 300 us wide pulses 80 us wide pulses also available but performance not specified I Power Line frequency Positive going or negative going as determined by Type 576 POLARITY switch 15 75 a a 350 volts nominal as deter mined by Type 576 MAX PEAK VOLTS switch positions within 18 and 12 on 15 position All at nominal line voltage 1 1 META dM AA ng PO P P PA POVAN Re PA Ys A TEA Peak Current A en P DEEP PAP A A Minimum available peak current at iow
16. C position is not usable POLARITY MODE D May be set to NORM or DC ANTI LOOP LEAKAGE EMITTER CURRENT position is not usable LOOPING COM Has no effect on display PENSATION NUMBER OF STEPS m NN CURRENT LIMIT None ee ae E i 5 highest current step amplitues can AMPLITUDE STEPS OFFSET be multiplied by 10 by pressing 176 IXIO STEP button OFFSET When 1 6 X10 STEP button is i lighted offset is pulsed OFFSET MULT When 176 X10 STEP button is lighted the control becomes a 100 times multiplier Not usable ee see 300 us and 80 us None e PULSED STEPS STEP FAMILY REP ON button is automatically pressed by plastic projection on 176 rear panel aa 5X button is automatically pressed by plastic projection on 1 6 rear ES POLARITY INVERT None RATE Meu Ia Ma a O e er aaa aaa a Maa A MA AAA A e rra re Ok e naanisitinirn AX MULT None None PLY VOLTAGE DISABLED Light y i Ame inatand 4 E F1 v 1 v 10 times mui 112 icatio ion rs i if flag tea Headout when X10 VERT button is pressed i PER HORIZ DIV None Readout i PER STEP Readout 70 times multiplication ts indicated pressed Sa a ET M OC CT CER BOR gm PER DIV None Readout CAME RA POWER Connector Line Voltage Selector Assembly Rear Panel 50 Hz 60 Hz None Rear Panel FIRST TIM
17. E OPERATION When the 176 is received it is calibrated and should perform within the specification shown in Section 1 The following procedure allows the operator to become familiar with the 176 controls and their relationship to the Type 576 This procedure may also be used as a general check of the instrument s performance For a check of the instru ment s operation with respect to the specification given in Section 1 the performance check N in Section 5 must be used ET Install the 176 in the Type 576 Press the Type 576 300 us PULSED STEPS button 2 Connect the Type 576 to a suitable power source and turn on the Type 576 3 Allow the instruments to warm up for a few minutes The instrument should operate within specified tolerances five minutes after the Type 576 has been turned on a Set the 176 controls as follows MAX PEAK POWER WATT 100 XIOVERT Not illuminated X10 STEP Not illuminated INTERLOCK OVERRIDE Not pressed when 176 X10 STEP button is 5 Set the Type 575 contr READOUT ILLUM GRATICULE ILLUM INTENSIT Y FOCUS VERTICAL DISPLAY OFFSET Selector CENTERLINE VALUE HORIZONTAL Verticai Position Horizontal Position DISPLAY INVERT MAX PEAK VOLTS PEAK POWER WATTS VARIABLE COLLECTOR POLARITY MODE LOOPING COMPENSA TION NUMBER OF STEPS CURRENT LIMIT AMPLITUDE OFFSET STEPS PULSED STEPS POLARITY INVERT STEP MULT 1X We HSU CE LETT IEIDEI URL LIL EG
18. M E 3 l 44 SRG i Ner SEE ao nn DO TERE AR XE PEERS SRE TIAN mnftDee ilte a MEA DA A A SM ESS Leese RATE Side ER DREI Nil ut Lui FLA ERES iv nmt do SE 5 ns es TAL SES P NA A ANIMA o mar IT dH ve rene fe eA MEE Ween VM Peet totter AS ESE SEG EM ETI SE NONSE st Pea CARA ELE ue pee ASA e LATA VALE DE MS rs e VENENIS NEN viU St RM tear T wf AIT Aman NA TR ue VA LAT MEAT Aere Pete epee te rA MAP DE PAIS SLT IT ann A Ae i ee NY a nd I4 NN Ier tree TS SERES sors DUREE EH T qne ae el v e AAN MEOS CU HN SE NUAGE ONIN EN A ire tet MAN n T ety IRE ese Say EER e SS AEE meet er Ven DAMM IWAN UM MNA A SSS HE Set enr reg der iS Ie LER teen DES TA a eL TN SL vui v Ex RER eed M Em VILIS AES FERS i Td e Mee nas TAT Se SERS LM Mig Boye LEBE MEA CEA aes ELEND TN ns LTERE uc pee HN See TTAIN DIAM A eM Em E RE ANNI Tee e o el ot wr RRC RN aes RS ERST NES COS HERE TREE ONG ase ad A SENS So ER HN BUM e ats ERLERNTE i MEARNS BET EEE oes Xu oe USES es eR i ere Na PRA MAS PS NO T DH IAM T Aer Nes WERTEN BES uM rt ENS ISLAM EST pd MIELE INS AMT SA oe spre SEE RS ONT Te Teo DRM ne a MERDA ORTEN Nt pe EN RETAINS A RENE DIE iA pe urere LAN st n E ES 7 ie SATT rE AARNA RE ER IS TU SZENE sein PET GRRE IRE SES TS RENTEN FIRE NETS Alesana es NY ESTE EES eA Ee SET EN eme NET PEt Fae aa e e NM terr hie TEM Du ENTE j qe RE ee a MAS SAY NS Nen Ru Wan ES PAP ree Y As ru da D E nn NE THREE uere A HS URSI ECHT RIS SITO ICO EHRT ERNANNT NEE eerte SEO o
19. R A NAA Nes ON ERN ANI AE TEAR a SEE AEEA DOMOS NR iere we REN REE AIR EASES ose ey Y RNY NAA S ET AR ANM TERE NS A QU he tn TEL ER Meee HEADS H wr NATRI I TAN re ete eda MENS IAN ANS 5 PAD PER COUTE DELIS TEMA US E NDERT PE ASNE CL r TE 3 ONTIARS EMER niti ry EM BEN er a e ada a e nes NE SZ IE ee e Oe IL ENDE ERSTER RS NEISSE ERS ERSTE NSS SEEN base E A SIN wats II gl pec Bx V TOUCHE e OPE E CACHED ERN EE ENIRAS E paee SEN IR SCH EA A apd PUR IN ZIELE thre See ne re tenet ge SE at NN IAM LEER Nee ES a X CER LIB NEED sear Se ESSER are SH hee Sa ES YN T VESTI o LAT PEE IURANDUM a ness z rer ie v nisin ition AVAIN n pets i PE SAREE ls IT Deere I I V re em SES ES v A SEAR iggy MAS NER x TET AAT E Rn xe io STEN ARSE OMA D UNUS UT S MANN NI ie gone S TAS Pies 3 3 EUM X 3 VEN e PRI A TITAN SENA PA t MRS RENT v Stats XN NEATIS MAS At SOR FERNEN arn TEE MA D UR SOR RES N EA B R d VANVI ARMIN EEE 2 SEMIN ASH ONUS A Se CRY AH MNA POS armenie AA z AE a E ERAT N Le UAM NET ap scout re AMANTE ru IM TE eT ame eA sis a E em Piero treatise os Pe P Sri NEE RER iN x MEER AES D T AVR Ek IT SR eR Sa RA SERIEN NEAR A Mo AE si SEA AATEC SS NS MERE Na acs 5 EOS 5 PEN RANA IAM ON unn MA NL E A DNE AZ A x ESE a ES A T SOAM fate ENTE arn TAG SINT IEEE ES S eed x r uh CRF a aci NE SR or E Eft S ANE Se sami E J A TESA M M q x S de ERS A SER gt z ri ELSE N SY PS aes ml x D M For
20. SSIS ESS eee OE AO DEREN Re x MAI eri EE ARA AN Me ONIS c rg s SAE T NT AONA NAME NA NA ATA SNR E Oa NOU ENO E HUE AES RE e Tete m OS AE N N ER NS Le Pete el COP rE LANDES we SESS N AM V NN BEE Se M een roe A RAE EE SME POEM ee Dee eee ew an Went eet ees ec er ea th Ebel ene le Pion EN ee ta X pera ICI TELE A PILIS MAE AIR aw ert le Erp et teh d uon ni LICET Se CI rer CES PASTA OP IMMER NER END Ua fe NN pede IESUS E EEE ee eee ERNE teeth N teet ene RAs ae ago VIUA MET RESTE A N A OVA EEOAE IIS S iV ANM IT Me i See oF non O EROS o o Qua A of d tao on all Posse PITA x H NI Me ES NL Pei i o OPE Seige hatte A REM TE SR a TO 2 de NS Ess SOME Rai dre IEEE ACA RUDI PERTENECER A INN iunt N ro E d CD o ir etra t nut e fAI RN aed aod VIN MATIN AAEN II dese eS AMENS o EN direi Qe vene DA t jects Oat eS o SY NIS CS Fee Pi ee ee en a uj A De e a eee b 2941 y E S H d 5 ET SR een terest ge TIO Se E SEES ERSTEN RE ad AATE EE EELDA ununi EN ET NS NER e ROB e RT EAS ESSEN RR A TEN AN fone PSE RT SESS Noe ADIDAS SEE NEES SEER AS SE ES Suga iia IM FSET ESE PN ANIM ERE RR SAO DARREN IN een haat ace NS RESET Eee NDA 5 ES ett JANS The O DEN NETS SSE oy SAN SAIS i SES AA m nt IMS DAMNIS ATA SUY fe 7 T MAC Aere IRE TEASER UI VUES I e LIA ut vx SNA NI HEN GUS Er 23 S EEEE D ed D pr Doe UNIV itl T Ti eher B a MEO Ee LIUM VATI ips f T A Mss ENS M e 3 EA A IM NS ER NIST s RO i
21. Se AT ANT TAIN Mis a NIMES inse Hives T3 Inn VENE TRUE VUE ee SEER SIS ES Sh Si MAIE O UNA MMA eU if NN PR ERE PLU sin te Y 1 a DELT Ne ERBEN Aw 79 s went Ay p MAINE TET SH Hep dM ANSA 7 r ord vue epeei tte el resp aA AIN aS m ff BETEN VA RTI yei ec SANSA OW To AS Sni mi A PR n PURO K MESS IA MO NDA VAT NN RN zn EEA SINC ny Pe SERIA RS NE See SE el XH en En ARIES A T Ql NS XR SIAR Rei am MAS ER ES oe ieee eae ENSE p MC EET acne NAE MN ER NONSE OE er D 5 ka ia x EY pad A O NRI BERN Mette Shes ARIAS AO TERA EL Rati aus E ir k pr E CRRA SURE TS ENTERA NEE RD DR SEN Q2 ANA AI de NA iius ens EL us 3 re ke HS Uu lac ECHTE ES CU Rt M Veena Sats Tart QUIT NESS vy Sei ect NIA ADU Rae ener a 10 E SEAT Finan sae Sin sia TORRE OD teren tso SIC DD igen She pes p ATA icut SRM BARS AI ede SS SHARE AS II A ape See are D m NR MN e WEGE IY p Woven SOS rina no REN FONS MM ORAN E RE COTRA TEE VERSES Agee o NU D DATO Serie an ORR EASES a TII P E wat etn DARUM EI e ER Eu ESSENER FRE DEMS ivi LT A M ser ese Meses dent een eee ERSTE ARTO A VALLE AMAT Drap ANN m CE QUEEN f T PM p AS B oe ov i eel rusa tI VANS N MET SETS A Raus wes ADM EET ee ux Re RATI M gt T MINNS VIAM MAT reet A UNS ANE indice REIHE ANA DEI RULES ES en SAMO DEPT LE VES Bas e es iu Dd Fre Ha x ip v s us BEER ANIMS AANA AN SNARE NS ASA DONAR id TENGE Yl 2d WAS TEEN BD NR MA Re Me alie IONNAMAO Cu er ent el Be MAIER Wiese LAA PROS EN I wer beaten gaan m 3
22. So PF Visible Readout Visible Graticule Line Visible Display Centered 50 mA NORM OFF 0 5 V COLLECTOR Centered Centered Released 75 Has no effect Fully Counterclockwise NPN NORM Has no effect 10 20 mA 0 5 WA ZERO Released 300 uS Released Heleased 6 Select an NPN power transistor with the following characteristics B Between 20 and 50 max Greater than 10A BVceo 75 V install the transistor in a suitable Test Fixture Adapter TO S TO 36 or TO 66 and install the adapter in the Device Testing Jacks of the 176 7 Put the protective box in place over the Test Fixture Adapter and close the lid 8 Press the Type 576 ZERO button and adjust the spot to the intersection of the zero vertical and horizontal graticule lines of the CRT Release the ZERO button 9 Turn the Type 576 VARIABLE COLLECTOR SUPPLY control clockwise to obtain a collector emitter voltage of 50 volts 10 divisions horizontally 10 Set the Type 576 AMPLITUDE switch to 10 mA and adjust the VERTICAL switch for a display similar to 2 5 Operating instructions 1 6 gem rm that shown in Fig 2 2 The VERTICAL switch should be set at one of its five highest current positions aii T b ad Fig 2 2 Typical display of I vs Veo for 10 different steps of base current for an NPN transistor 11 Press the Type 576 OFFSET AID button and set the OFFSET MUL
23. T contro for 2 00 two steps of offset Note that the zero step or pulse of the display is no longer con the zero horizontal graticule line For normal pulsed base operation of the Type 576 with the X10 STEP button not illuminated the offset voltage or current is not pulsed 12 Press the 176 X10 VERT button which should illuminate the button Note that the size of the vertical display Is decreased by 10 times due to the 10X increase in the vertical deflection factor The PER VERT DIV readout should also increase by 10 times 13 Press the X10 STEP button which should Illu minate the button Note that the size of the display in creases due to the 10 times increase in the step generator step amplitude The PER STEP readout should also increase by 10 times Also note that the offset is now pulsed thus the pulses start from the zero horizontal line rather than from the offset level as discussed in step 11 for normal oper ation 14 Lift the lid of the protective box Note that the collector supply interlock opens and disables the collector 2 6 supply This causes the red WARNING light on the 176 to go out the yellow COLLECTOR SUPPLY VOLTAGE DISABLE light on the Type 576 to go on and the dad to disappear 15 Leaving the lid of the protective box open press the 1 6 INTERLOCK OVERRIDE button This causes the collector supply to be enabled Note that when the button is pushed the yellow COLLECTOR SUPPLY
24. TEP readout With the X10 STEP button pressed the maximum step generator output is 20 amperes The X10 STEP button light will remain on until the AMPLITUDE switch is switched to a position below the 10 mA position When the X10 STEP button light is out the step generator operates normally NOTE When the step generator is not in the highest 5 positions pushing the X10 STEP button will not change the step generator output but will change the readout Either 300 us or 80 us pulsed steps may be selected If the Type 576 STEPS button is pressed the 176 base step amplifier and pulsed collector supply are disabled No damage results to the device under test When the X10 STEP button is Hiuminated both the steps and the step offset if any are pulsed Also the range of the Type 576 OFFSET MULT control is increased 10 times giving it a total range of 100 times the setting of the AMPLITUDE switch When the X10 STEP button is not iHuminated only the steps are pulsed in this case the range of the OFFSET MULT contro is 10 times the AMPLITUDE switch setting The step generator rate is always line frequency when the 176 is used because a projection on the 176 rear panel automatically presses the Type 576 5X RATE button when the 176 is installed A similar projection presses the STEP gt FAMILY Hen button NOTE An open base condition can be obtained by setting the Type 576 step generator amplitude switch to 05 yA D
25. WX AL n ae u Fuge RE RE A TPE SITE Mee RES ASCE NS RC ME SE e HERMS Sinna Muy GRUSS F CHER SRSA ee nas SESSMENT RESET sy baca ER ei NA RN E o GP B e EMOS coo Ring NRSV lE TS e E Because AVI up vieni elei VIE EOM DATES UT AR NA MINIS Sees VEN eae ER SESW ER SEIN ROE ep ee nor pee Metern oe E win uz XE E Sanches zu TN C PU AM M IR NAI qr APIS IMEEM ESTES ACTUM PESTS pron pe sine RO IMEI CS RT DRE AMARI ERNST EN et vm WEN NUM rM EE ATS ne CORE ox A A Py GER GUSTY cuum ER EERE epe eue Ue TUM Giant SR NN AES T ADAM RENS isi reir A doces BSR EN 99 Ti BASE en US MS ESE Me dest TOAS Ben ERDE au Ey e Bus AS Vul abide ui De E EYES BATHE ESSER RU MO MANNA M SAN NEID DIS DANS Roe RE RE rot MAS Rates AER ee AO xni wu PA TE ES EDEN SURE cs We NATUS MERC TESS ASHE ANN Nm I PR AME AMADEUS d IN eer Lines ange Ce feel e Y SRST SNAM RN UNS WIEN AS RENTA DANS VSA THAM A NA Tran T u a estet A E E m DRE ves 7 AE NH DOE ah wee PE Ev ES ens SL WISE eni Ae Peer t P RAT ee Era OT MANSUS MH gene it ed SAIS AL Pi EROR x zt E EA RENTEN RE NT AS ESSER NaS SEVERE eva VUA SENI A n 3 A TESA ED Vaya t Zu A FE Fr SMES a wes RC aes SHINE RE S MUNI Hoc o PR EDS Se CONO MENSCH IGENX Mu AA e T TOP Le MS EAS ANA GARA ANS tru IM nest dey E IL LU E Aer AR A A eae Susie ED TTG TEES kes SAS QUIA iS IRURVMAMAS NE ssi eh t DAA AAA pen A gr a TE LP SAVE LEN SU VIAM ENA NIRAES San NAAS aAA SA Aas EM Aa ASE A LER a er ME AS m TA HE TO MEAM EA NAA NIEE ee palace tae
26. a re rn rn jae X10 VERT button illuminated 5 Within 3 of highest on screen value highest collector current settings when vertical display is unmagnified only When vertical display is magnified within 4 with 0 to 10 divisions off set 3 with 15 to 35 divisions offset land 2 with 40 to 100 divisions off set Deflection factors Lo Horizontal Refer to Type 576 Specification UT Mod TO FFL III EN As Md re Collector Current X10 VERT button not Refer to Type 576 Specification illuminated Vertical s ns 1 A division to 20 A division in 1 2 5 i sequence Scale factor is indicated on Type 576 PER VERT DIV readout X10 VERT button illuminated 5 highest current settings only x Leakage emitter current measurements cannot be made when the 176 is being used TABLE 1 2 ENVIRONMENTAL CHARACTERISTICS AA Performance Requirement Supplementary Information A Sieh A o RNAP Characteristic Non operating Operating Aititude Non operating Operating Vibration Non operating o u 2 _ 15 minutes along each axis at 0 015 inch Vary frequency from 10 to 50 to 10 c s in 1 minute sweeps Three minutes at any resonant point or at 50 c s m em mener OPPETO Nh e LP All Re FEV PAP Pi dd ch Shock Non operating gj v oa s as Sl 30 g s 1 2 sine 11 ms duration 2 shocks m el AN peraxis go
27. an be plugged into these jacks These adapters provide sockets into which devices with various lead arrangements may be placed for testing Table 2 1 lists the test fixture adapters available for use with the 176 when this manual was prepared Others may now be avail able These jacks also accept standard banana plugs so that devices can be tested when it is inconvenient to use a partic ular device testing accessory or when such an accessory is not available TABLE 2 1 Test Fixture Adapters Which May Be Used With the 176 Tektronix Part Number Case Type Diodes with axial leads does not provide Kelvin sensing 013 0100 00 TO 3 013 0101 00 TO 66 013 0110 00 Diodes with stud leads DO 4 DO 5 Diodes with axial leads provides Kelvin sensing TO 36 013 0072 00 013 0112 007 This list contains only those test figure adapters availabie at the time this manual was Being prepares Additional adapters may now he available P on 176 accessory standard Type 576 accessory 2 3 Operating Instructions 1 6 The jacks labeled C B and E are the collector base and emitter jacks respectively The jacks labeled Cgense and Esense allow Kelvin sensing of voltages measured under high current conditions Kelvin sensing means that current is supplied to a device under test through one set of contacts and the voltage is measured through another set of contacts This method of sensing vol
28. d tied Ts Vei eit eme DE eie re MYWELe SII SERRE SER AE HELM mia IA RE URE SU ESA ER AL EIS RECHTLICHE ERS AUSTIN NS aS d PE BRENIG vum us HRMS TIN vr YI A AR Bast ISOS ES STE TS es Shut TENET Nc ARS TS YAN IRRE IE RER ne Een RTE nn he Dean 5 el s OO EAT Us RENTEN epe de SAN n VXWLXESVCUNEENZMCCAEAVNVSRIOCUDUM Rs ARMY M Ine he SSPE RET MESE LEN UAE RSS Te tee De PACD Nee eI ESF DARIA N eint air Yu TT NER ITE e se VA eA Ter ter EISEN Ne eaa COH EIS Pp o e a SE N gigs ee Ua han M Sate ne ani NI SZ Senator aes EPA Xx ertt DES E eM e oa a Lr RSS E Y I LM nun e BERNIE BE INST PE ats A RODA EM RII RT eat selene es i A M Wh VRE RETESET PEPE et ee parre SEEDS Ps Ti nen EIN bee Pyke ete oe tees M Coho ev Ve pud MV LED SoS Tae Sees e ES is e p I NI sere na eee ane U eos ee A AnA henes ets ee iD EE d AMAT Uer di Hope t UL UR Sate a es SRM DAAA a EAE Sd ene RE E cus D ves REI s SYST u Tie Es en ines pi BM Viv Da PME RO de 5 mn M S ER it NM Er u ARA Ae epee atts Met de A in VI TY MUN le v Nets n MA DAT NI AE ae x e VEINS in ELA gt xu REN warra inty mentio M T oppi en A LARES MALE j e TA wit cron REISE WAS io NL IPN BEER ingineer PU ox ae J ge BESA PETI t MANT MEM VEU sagen le eu RT beris VR D AMEN IS A o ee tt 5 DOPO EE CC ae ac MAIS e NASR ees SE si Dosey Spacey MIT SE ARA OSA ANI ASSIST ve DEDE NUR POTE BEER Hasen s BSAA ROS Aan LIAA AMASSA MIA TEE VENE Tee Ve A eene eo e Spas end we IAN IA SA eee
29. e INTERLOCK OVERRIDE button can be used to enable the pulsed collector supply The protective box fits over the device under test When its lid is closed the interlock switch is pressed which enables the pulsed collector supply Pressing the INTERLOCK OVERRIDE button also enables the pulsed collector supply The INTERLOCK OVERRIDE button is used when the protective box cannot be used either because the device under test is too large or it is in a remote location Whenever the pulsed collector supply is enabled by the protective box or the INTERLOCK OVER RIDE button the red 176 WARNING light goes on and the yellow Type 576 COLLECTOR SUPPLY VOLTAGE DIS ABLED fight goes out H E WARNING a When the protective box fs not in ade pressing the INTERLOCK OVERRIDE button makes operation cof the instrument potentially hazardous Operators should always be aware that when the red WA RNING light is on dangerous voltages may appear at the collector terminal of the device testing jacks step Generator When the 176 Is being used the Type 576 step generator must be operated in the pulsed steps mode Using this mode the step generator operates normally for all positions of the Type 576 AMPLITUDE switch except for its five highest current positions The step amplitude for each of these five positions may be increased by 10 times by pressing the 176 X10 STEP button The increased step ampiitude is indicated by the PER S
30. ed 5 At least 5 volts with Type 576 highest current settings only AMPLITUDE switch set to 10 mA 20 mA 50 mA or 100 mA at least 2 volts with AMPLITUDE switch set to 200 mA Maximum Opposing Voltage and Current Mode Steps and Opposing Offset X10STEP button not illuminated Refer to Type 576 Specification X10 STEP button illuminated Polarity of step generator output cannot be reversed using oppose offset Power line frequency Type 576 5X RATE button pressed by projection on Step Rate Br E B E d 176 rear panel Pulse Characteristics Width 300 us 80 us width also available but performance not specified Approximately 2 Duty Cycle 300 us pulsed steps M Step Offset Polarity T EE Same as pulsed collector supply polarity db Wia L Reversible by pressing Type 576 STEP OFFSE AA TT TET TT M I PA PAI A PAA 2n e a Vertical and Horizontal Display Amplifiers Display Accuracies i xc e SEN x Horizontal iu Lr ar ae Refer to Type 576 Specification we Temperature WP PPM Nee PONT RANTES vir X TABLE 1 1 cont Ec COM RS uUa MEE CMM ee QD UU Characteristic Performance Requirement IE Supplementary Information atom ee nn nn A a AS oe PR FA IN para Vertical l X10 VERT button not illuminated Refer to Type 576 Specification d EREMO NUR A RE BER A PETE MTN RENE A RO ER Ren eee i rmm nr
31. i5 ANA P e Sey BESTE gre festa inet aee Sess SR AN A E AR A LECCE CAR E a Si ESE e lee SERED Pa OS VER TE IEE ESS HSM DASA ts ADE SEES aD SI On en ELE SLE Ma ii BEST TEAC eT ER ne Lk DEORE Bane Uri EAN nae BAD bret TVR LEN Byte arth Di Og ee VEI ED MANES SER oe tesi every ier TESTER tS E NI heave Da aa veins et Myst tached etn se Det STE T ge F OA e SP SANT SEVER MESUART ASAIN Ner Me MRNA Pur MUT EDER poH OPE vum SUM Rete trict ar Se EE Oe er EAE men a is Tes hy DUIS Ean RES SEINE SSR PAA GL en eS SR ET WES SERA gs NS SEAS Tb See y X WHER CE ES LORS SUBSE rv erri Line WU ERS SEALE oct Safire yi Pat ntm y il SEDARIS EIN TEAM ES aara TEDINYITUSG UN TE tented teeta AAT IRE DLT eh ay E CM ee DA SER Se nD diee rr ee e Ee ee Dee De TSS See OD ee ee OS Sen pana lee eie TEEN VA eye REES TRETEN TEEN sess Dare fot MAy ABYPIVS SEROMA in SENSE et a EL Nee MSS OE gates LCS QV Yet n Cibi UO ex a meine T De Tec e ae bcp Dic SET a er Pr mers SIS yy lee Bie rede a e Ie LIC Har A PER HIDE a SEINE en COEN AR irre poe gee Ih ost ILES Tete ane PX UN Ne it es P MEE IETA UNS Mite Se yt et ss ets UAE TA ST Ner t AES ee ete MP INNATE ee E LEE EI ES RS Pi da RAM Aui mer e a eee ot FLUE Pere A ea EP TE Peet a et OE PE The PNE MA retur e tae e e DEM RATELY RES n EEK wap tp eb aes ET Lem restes Bn EL Aur eae de En ANITA TEATS MEE tee wee MAREM AA MT ees EEE ESEL UU TIS Es a SE eat ef cesta een ce wann Se ME Sua sant Se ERE See Te TU A recen MAAR E ERSTEN DB a aan Pe ac
32. isplay Amplifiers When the 176 is being used abs Type 576 diniy ampli fiers operate normally except that the X10 VERT button has been added to the 176 to add range t vertical measure ments and leakage measurements cannot be made When the VERTICAL switch is set to one of its five highest deflection factors and the 176 X10 VERT button is pressed the vertical deflection factor is increased 10 times _ When the button is pressed it lights and the increase in 013 0111 00 Operating instructions 176 deflection factor is indicated by the PER VERT DIV read out When the VERTICAL switch is turned clockwise beyond its 1 A position the X10 VERT button light goes out and the VERTICAL switch returns to normal opera tion The X10 VERT button does not affect the positioning controls of the display amplifiers NOTE When the VERTICAL DISPLAY FACTOR is not in the highest 5 display factors the X10 VERT button wil not change the vert display but will change the readout When the VERTICAL switch is set to STEP GEN and the X10 VERT button is pressed a 50 amperes division deflection factor is obtained This deflection factor is not indicated on the PER VERT DIV readout and its accuracy is not specified Device Testing Jacks Devices to be tested are connected to the 176 through the five Device Testing Jacks These jacks allow one device to be tested at a time Any of the Tektronix single device test fixtures adapters c
33. s FSi al E t i h i 1 t Y Pi E a um Fig 1 1 176 High Current Fixture n A a a E E Pr D aa J i f A a Da a a poe LEID Seta gt 5 i us er mie CREER Rer ES t ts a eius E NT ECC B a mitt Shc He Y i SE uer Sy te E TI LAO Change information if any affecting this section will be found at the rear of the manual The 176 Pulsed High Current Fixture extends the testing capability of the Type 576 Curve Tracer by providing a pulsed collector supply output of up to 200 A peak and a pulsed step generator output of up to 20A peak To accomodate this increased range the maximum peak power output has been increased to 1000 watts and the maximum vertical deflection factor has been increased to 20 A division The 176 slides into the Type 576 in place of the Standard Test Fixture A set of 5 accessories jacks is avail able which accepts most Tektronix device testing acces sories Kelvin sensing of collector voltage may be used for all tests An interlock system is used which allows tests to be made only when a protective box is in place over the device under test thus protecting users from dangerous voltages For remote tests this interlock system may be overridden by a front panel button The following electrical and environmental charac teristics are valid for a 176 operated in a calibrated Type
34. st current settings only a AX STEP MULT button pressed Type u fa 9 amp 4 3 3 a 676 AMPLITUDE switch setting Step MR LM x CE 3 o amplitude is indicated on Type 576 PER JANE LIF n or oe s STEP readout Circuit breaker in Type 576 may open up if Type 576 VARIABLE COLLECTOR SUPPLY control has been left in its clockwise position for longer than 1 2 hour It is advisable to leave the contro in its counterclockwise position when not actually performing tests Se 9 amp 2 Uds Eae doh MUT WP PPC LOCAL IRIE ET IS U TABLE 1 7 cont P d ij s i DENEN Characteristic Performance Requirement Suppiementary information A aA A AA YET APT KA AE EEL a ATA Tre A A AN N PP PTW FYYTYTYT FIFA Pr Type 576 OFFSET MULT control range X10 STEP button not illuminated X10 STEP button illuminated 5 Continuously variable fram O to 100 i times Type 576 AMPLITUDE switch setting either aiding or opposing step generator polarity highest current settings only Maximum Current in Current Mode Steps and Aiding Offset X10 STEP button not illuminated Refer to Type 576 Specification 200 times Type 576 AMPLITUDE switch setting or 20 A whichever ts less X10 STEP button illuminated Maximum Voltage in Current Mode Steps and Aiding Offset X10 STEP button not illuminated Refer to Type 576 Specification X10 STEP button illuminat
35. tage eliminates errors in voltage measurements due to contact resistance Csense and Egense stand for collector SENSAS and emitter sensing EN EFFECTS OF 176 ON TYPE 576 CONTROLS Since the 176 performs a specialized measurement function some of the Type 576 controls connectors and readout do not perform the same functions as they would under normal oper ating conditions The following table lists the Type 576 controls and their functions when the 176 is being used with the Type 576 TABLE 2 2 Change in Function of Type 576 Controls Connector and Readout When 176 is Used Control Change in Function READOUT ILLUM None GRATICULE ILLUM None INTENSITY FOCUS None Leakage measurements can not be made 5 highest deflection factors can be multiplied by 10 by pressing VERTICAL 1 376 X10 VERT button STEP GEN S position provides 50 A div deflec tion factor with unspecified accu racy when X10 VERT button is pressed DISPLAY OFFSET None selector CENTERLINE None VALUE HORIZONTAL None E POSITION Vertical None and Horizontal EX FINE POSITION None Vertical and Horizontal 2 4 COLLECTOR SUP AT rn eT eT an ZERO i None CAL None DISPLAY INVERT None MAX PEAK VOLTS pros position is disabled A AA MAX PEAK POWER Disabled MAX PEAK POWER WATTS WATTS buttons on 176 used instead VARIABLE emi pem f TOR SUPPLY A
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