TV-7_A_B_D_tube_tester_user_supplement_TB11-6625-274-12-1_1962.pdf

NAVWEPS 16-45-637 TB 11-6625-274-12/1 D E P A R T M E N T O F T H E A R M Y T E C H N I C A L B U L L E T I N TEST DATA FOR ELECTRON TUBE TEST SETS TV-7/U, TV-7A/U, TV-7B/U, AND TV-7D/U This copy is a reprint which includes current pages from Changes 3. HEADQUARTERS, DEPARTMENT OF THE ARMY JANUARY 1962 *TB 11-6625-274-12/1 TWENIGAL BUMIN ME ADQUARTERS, DEPARTMENT OF THE ARMY No. 11-6826-274-12/1 WASHtNGTUN 26, D. C.,17Januarui96S TEST DATA FOR ELECTRON TUBE TEST SETS TV-7/U, TV-7A/U, TV-7B/U, AND TV-7 D/U 1. Operation. The following instructions are keyed to the table of teat data given In paragraph ETO-.2OMi F;w-5570 GR5-4030 GRs-423 FR3-O2.tiI 11ss-0$00 11s6-040s Hs5-0318 ET1-660? DV.t-1200 lo. . 066 0 10 . . o100 0100 0 M o . 37. . 20 . 0 D$26 Az30 D3 49 D349 A3 - A3.- C*60 C3*0 C388 MUT. COND. 2E35 . . . . . . . . . .1.1 DV4-120018 B(#) 15 #IIold down pushbutton 2-DIODE and press pushbutton Z-*MUT. COND. 2E36.1.1 !_) V4-121XJ18 - n(#) 15 #IIold down pushbutton 2-DIODE and press pushbutton 3-M UT. COND. 2E41 . . . . . -1.1 EW%lXXI20 B (#) 10 Pentode sect. #IIold down pushbutton 2-DIODE and press pushbutton 3-M UT. COND. 2E41.1.1 EW10 Pentode sect. #IIold down pushbutton 2-DIODE and press pushbutton 3-M UT. COND. 2E42 . . . . . . . . . . 2ES5 . . . . . . . . . . 2EV5 . . . . . . . . . 2FH5 2FQ5. 2FS5 . . . . . . . . . . 2FY5 . . . . . . . . . 2021 . . . . . . . . . . 2G21 . . . . . . . . . . 2022 . . . . . . . . . . !m22 . . . . . . 20 K5 . . . . . . . . . 2T4 . . . . . . . . . . . 2V2. 2V3 . . . . . . . 2W3 . . . . . . . . . . 2X2 A . . . . . . . . . 2Z2. . . . . . . . . 3A2 . . . . . . . . . . . 3A3 . . . . . . . . . . . 3A4 . . . . . . . . . . 3A5 . . . . . . 3A5 . . . . . . . . . . 3A8 3A8 . . . . . . . . . 3A8- 1.1 EW- mw- 3RW . . .-. 3B2S . . . . . . . . 3B21- . . . . . . . mw 3BM . . . . . . . . 3BC5 . . . . . . . . mm.- . . . . . mlxll . . . . am% . . . . . . . . ZIMWA. . . 3BN17 15 1.) 8 . . D 12 D .1 ,) (: 11 1) 1811 18( :2 (. o70 A o70 .A 15 . . c 10 .1) ,+7 B oMl A o44 A 0. ) 101) ?2 . . . B 24 c 20 D 20 D o r) 10 1) ?6 . . B 19 c Z. .c 10 . . c 16I) 19 c 13 1) 18 D 15 . . .D o39 A o36 A o54 A o47 A 11 . . . B o70 .4 070 A o70 A o47 A o42 A .lini- rnum less tallbeNoLat ions j 3 3 3 3 3 3 3 3 3 3 3 i i 3 3 3 7 7 3 3 3 3 3 3 3 3 :3 3 3 :1 : 3 3 3 3 7 7 7 7 :3 2 2 2 7 7 40 I)iode No. 2. 34 Triode No. 1. 34 Triodo No. 2 x Pentodewct. 23 Triode sect. 20 Tetrode.sect. 35 Triodes ct. 46 28 Ientode sect. 25 Triode?ect. 38 Tetrode sect. 44 Triode sect. $2 Ilate No. 1. W PMeNO ,2. 60 26 l%ntodes wt. 47 Triode sect. 40 Plate No. 1. 40 Ilate No.2. B Pentode wt. 46 Trmde sect. ,3 Pentode sect. 51 Triode sect. .W Triode No. 1. 50 Triode No, 2. 28 Pentodescct. 46 Triodcsect. 52 35 Pmtodcsect. 35 Triode sect .50 Imlto(ie sect. 38 Triodcwct, 38 P(?nmdcscc(. 42 Ttiw.lcsect. 23 Triode No, 1. 23 Triocie !No. 2. 40 Plute NO.1 40 IPate No.?. 40 Plate No. 1. 40 P1ate.Nc) .2. .31J Triodesect. 40 Diode Np.1, 44J Diode No,2. 40 Diode No.3. 40 PIate No.1. 40 PMeNo .2. 15 C 3,TB 11-6625-274-12/1 Tube tupe 5U8 . . . . . . . . . . 5U8 . . . . . . . . . . 5V3 . . . . . . . . . . 5v3. _ 5V4 . . . . . . . . . . 5V4 . . . . . . . . . . 5V6 . . . . . 5W4 . . . . . . . . . 5W4. 5x3 . . . . . . . . . . 5x3. 5x4 . . . . . . . . . . 5x4 . . . . . . 5X8 . . . . . . . . . . 5x8 . . . . . . . . . . 5Y3 . . . . . . . . . . 5Y3 . . . . . . . . . . 5Y4 5Y4 5Z3 . . . . . . . . . . 5Z3 . . . . . . . . . . 5Z4 . . . . . . . 5Z4 . . . . . . . . . . 6A3 . . . . . . . . . . 6A4 . . . . . . . . . . 6A5. . . . . . . . . . 6A6 . . . . . . . . . . 6A6 . . . . . . . . . . 6A7- DATA TABLEContinued .Vfini - Fib ment.Wec!ora 5.0 E V2-6370 5.0 EV%108I 5.0 JscM0J4 5.0 JSWCC16 5.0 J S?ilJO 5.0 JSWOOO 5.0 H S$3481 5.0 JSMMXJ 5.0 JSO-40C0 5.0 E Ro-3000 5.0 E RO-20CWI 5.0 HYLWOIXJ 5.0 HYLK30J0 5.0 EV7-9861 5.0 EV2-3861 5.0 JSMJYJO 5.0 JSWOOl 5.0 HYw5000 5.0 HYO-31WJ 5.0 ERW3W3 5.0 ERLL2MM 5.0 JS-601XI 5,0 JS 6A Z8 . . . . . 6AZ8. 6114. 6115. GB6. 6B6 . . . . 6116-. 6B7 _. .- 6B7- . . . . . . . . . 6B7. .-. -. 6B8 . . . . . 6B8. 6B8. 6I31O . .- L).47A 7.1 BLEContinud . f,lzl. fllla- 7nmlselcckv8 6.3 1 SO 508J 63 11S0 3085 6.3 I SO-50N0 6 3 II S03(M0 6. 3 EV7 6080 6 3 EV2 1030 6.3 it”? Wd;tl 6.3 E Y-loxo 6.3 I )WO 8070 6.3 I)$VO 1020 6 3 I) W(!-2W 6.3 I) WIP7058 6.3 E-6-12L40 6.3 EV9 8070 6,3 lISS3Ml 6, 3 (; 1/4 ?350 6.3 1 I sO 3080 6.3 HSO-51X30 6.3 HSLk4LlS0 6.3 11 RC-2360 6.3 HRO-5360 6,3 II RWt360 6.3 If S3681 6.3 11 S5681 6.3 IISIP46S1 6.3 B73-4U20 !,. !Tr(rc l, 1,(, fl!Jc L ,. 01! .i o12 .i o65 .ii o65 .i7 12l 3 12II3 I .5113 16(3 060 .t o60 .1 065 .1 , 065 .1 71)3 21 (3 67 (3 003 11 113 014 A2 014 A , 30 B3 014 A o14 .4 .1 .4. .B 3 014 A2 014 A , x. c3 7r, 11 m , .” . .,.r, . . . . . ,. .” alue 40 40 40 40 3? 32 57 57 40 40 40 40 30 4L 3.5 38 19 40 40 25 40 40 29 40 40 2n YOM 10 11,? ll<lCC xl). 1. Il,ik No. .!. I1.ltt, x 40 Diode No.2 (#). 16. .B334 F bxing, 9 c341 Short test only. 10 _. -. El340 11 .-. -. D330 Pentode sect. 29 . c334 Triode sect. 10. .D350 2 0 C 3,TB 11-6625-274-12/1 DATA TA BLEContinued Fda- .fi71 j. mum rub0480 6.3 EV7-IY380 6.3 EV2-103O 6.3 EV7-64)89 6.3 EV2-1039 63 EV1-W20 6.3 EV1-W2O 6.3 EV2-7 1: A 4 #Connect a l-meguhm resistor from Diate jack to uqtal test socket pin Vnry biaa to vary beam angle. 6DA6_., -.6.9 EV2-783916 ._ D L1 16 6DA7_6.9 EV7-60a02.9 - c a82 Triude No. 1. 61)li7._6.3 EV6-108O6S _. D a26 Triode No. 2. 6DB6-_6.S EV2-912010 D (#) 46 #Hold down pushbutton 2-DIODE and press pushbutton 8-MUT. COND. 6DB6.8 ET1-662716.B*26 Grid No. L sDB6_6.8 ET7-662114 -B (#)16 Grid No. 8. #Hold down pushbutton 2-DIODE and press pushbutton 8-MUT. COND 6DC6.S ET1-66!Z7 11 D 8 28 6.8 Ev2-61a9 2S o 8a4 ParJtod* Mot. No. 7. 25 C 3,TB 11-6625-274-12/1 DA 7A TA BI, EContint(crl . f,r,. lfila-Tll 11 lIL Tube typemetltSelect msB)!ls N!(I (11 I:(L) lye 1+e8sLd(t.Y,ltat lolls 6DC8.6.3 EVO-8O3Oo 13 .1 28 I)iode No 1. 6DC8.6.3 EVO-i7-.6,3 EF2-7%499 .-C341 #1101 d(lovlll)uslll) !lttoti2-I)Iol)E tllll I)rcss I)uslll,ltor13 -JIUT, CONI), 61) Jo.6.3 EV7 -60%020.-1)3(D Triwlc No. 1. 6H.6.3 EV2-103O20 -. 1)3f2 Trmlc Xo 2 6DK6 . . . .6.3 ET1-56278-.1)333 6DI.5. . . . . . . . .6.3 ET1-562012 -C353 611 M4.-.6.3 IIYO-5030o38 A7.50 GDN6 .-. -.6.3 !1S5 083028 1) (045 Ctipconnccts to I)ltlte #lIolddown puslll)uttol 2-l) I()l)Eatld llrcsspusll)tltt() i3-:1Ll T. COND. 6DN7 . . . .6.3 IIY4-5C6O31 R340 Triodr No. 1. 6DN7 . . . .6.3 HY1-2C30261)340 Trlodc NO.2. 6DQ56.3 11S1 043053 . . .I)334 Cupis thepliltr, 61)Q6- -:6.3 11 S048036.1)330 Capcorlnccts to flltltc. 61) R7. -6.3 I?7-6tlSOz2 . . .fi320 mlOd NO I. 61)R7.6.3 EV2-1090541)331 Trim? No. 2. 61 S5 . . . .rl(l No. 1 61)T6.6.3 ET75ti210.-.1)(#)10 (ir(l Nc). 3. #l IcI(ldovil llslll)utto112- l) IOl)E ol(l Ircss(lsl Ll(ltt(!13 .JI(”r, CONr I 61T8.6.3 EV7-668910.C350 Trlod? .Vo 1 6DT8.6.3 EV2-103910r350 Tr()lc .No. 2. 61)W5.6.3 KV3 9170,50 -. c:i56 61)x8 . . .6.3 EV8697010 1):147 I,ntodr %,ct 61)X8 _.6.3 I?VI-211J026R:50 T,lodc sect, 6DZ7.6.3 lIS5-li4S0II1):4!) r(lltog:lti !-c (. ) rn(i of 30. olt hottwy to Iiu X(). 1 of Ioctliwchct (Vol)nt roIItItrrcloch. w isc.). lil)z7-6.3 11 S1-34S0II1)349 Irntodc so. 2 Vonnwt ncgoti,-c () l)d o 3Wolt tuttmj to pin h-o. 5 of Ioctd Sorkct (coll!lt (rvlovk%i .(,). Conncc!t Imsitivccnd of 3t-olt I,tlttcry to pin Xo. 8of loct:ll smkrt for(wch trsl, Couion: Disco”ectlmttery betwee” selcctar changes. (iIm6.3 (1 4030o1(HJ .i3.EJ c 01,(, 6f?5.6.3 GRS4230o100 .13E r Clowd 26 C 3,TB 11-6625-274-12/1 DATA TA 13LE-ContinuerJ Tube tup 6E6. . . 6F.6 . . . . . . . . . . f3E7. . . . . . . 6EA5 . . . . . . . . 6EA7 . . . . . . . . tlE.k7 . . . . . . . . 6EA8 . . . . . . . . 6E.48 . . . . . . . . GE Be . . . . . . . . 6EB5. . . . . 6EB8 . . . . . . . . 6EB8 . . . . . . . . 6EIf5 . . . . . . . . 6EH7 . . . . . . . . 6EH8 . . . . . . . . 611H8 . . . . . . . . 61 Ha . . . . . . . . . 6EM5 . . . . . . . 6EM7 . . . . . . . 6EM7 . . . . . . . CJ3Q7 . . . . . . . . 6EQ7 . . . . . . . . 6ES5 . . . . . . . . . 6ES8. . . . . 6Es8 . . . . . . . . . 6ET7 . . . . . . . . 6ET7 . . . . . . . . 8ET7 . . . . . . . . 13 EM . 6EU7. . . . . . . . 6EU8 . . . . . . . . 6EU8 . . . . . . . . 6EV5 . . . . . . . . 6EV7. . . . . . . 6EV7 . . . . . . . . 6EW6 . . . . . . . 6EW7 . . . . . . . 6DW7. - . . . . 6EX6 . . . . . . . . Fib 7M7?1Stbctora 6.3 HR.%(3J4O 6.3 HR3-2040 6.3 HRw2364 6.3 ET1-W20 6.3 JX+.KW 6.3 JX1-2030 6,3 EV2+70 6.3 EV%I080 6.3 ETo-2cM 6.3 ET13-7016 6.3 EV7-9S60 6.3 EV2-301O 6.3 ET2-761O 6.3 EV2-7819 6.3 EV7-9S60 6.3 EV2-301O 6.3 EV7819 6.3 EV3-9170 6.3 HY4-50t41 6.3 HY1-2030 6.3 EV2-7631 6.3 EVW4030 6.3 ET2-RI1o 6.3 EV7-6060 6.3 EV2-1034 6.3 EV7-9S130 6,3 EVO-3O1O 6.3 EVO-XI1O 6.3 m 45 ., .,.,-L. . . nr. nrr. . . . . . . . . . . . . . .- . . . . . .“, .,r. Ffl Olll UUWII JJUS1lJULLOII L- UIUJ.)IL WIUIUM DUX1lJULLU1l -LVLL 6( Em . . . . . . . .6.3 EV”8-91702? . . . . B329 6(JE8 . . . . . . . .6.3 EV3i?A)2063 . . . . . c356 60118 . . . . . . .6.3 Ev2-637019 . . . C338 tmH8.6.3 EV%1OW13 . . . D342 fi(lh”5 . ._. _6.3 ET2-507630 . . . . c338 60 K6 . . . . . . . .5.3 EV2-781310 . . . . . . D3W 6<M5 . . .8.3 Ev s8.ti.3 EV7-W6oB3 ?8 ti(; we.6 3 11 S048034.1)(#)36 #f oki down imshhuttm !-1)10 ) E and press pmhlmtton 3-M UT 6(; .s6.6.3 E1l F+W ,.2 B 3 .1 til; Y-G.8,3 R11-5W72?3R320 61.:Ys.OFF E) lR.OFF FI.T3-WSOSllOrt test only. 51f+6. . 611F8. 611F8 131LIS . . . 611 JS . . . . . 6,3 FL-3 W?I0 !,.3 F” 20(m t). 1s0 4LB0 6.3 (1 R,W030 6.3 ( R.%4$30 6,3 1s0-50S0 6.3 11$0 -3(?40 6.3 11ss-3486 6.3 IIS4-W$3 63 f?v2-7819 6.3 EV?-9S60 6,3 EV2-301O 6.3 t?-26319 6.3 EVIHJ070 o55 A 37.11 0W A o1(U A om A o63 A o62.4 :22 1 O.B 10. .E 10.1) 30 . . .B 21 o55 .4 40 40 HJ 4 38 35 25 34 32 1, bul-+u. Pentode sect. Triode sect. Pentode sect. Triode sect. Triode No.1. ,Meke no gas test. Triode No,2. Make no gas test. Pentode sect. Triode sect. Pentode No. 1. ientmie Nc. 2. Cap connects to plate. CONI) Triode No. 1. Short on 3 Trimie No.?. Short on 3. TriOde,NO.3. No short 1) id. Eye open. Eye closed Iliode,No. 1. l)iode No. 2. I1entodc sect. Triodescct. C$p cm- nects to grid. Pmtode sect. Trlode sect. Pentode sect, I)iode sect. 29 C 3, TB 11-6625-274-12/1 Tube type DATA TA BLEContinued M mi. mum B1a8 Shunt Range PressCaltle Fila. menlSelector8.Votallons Icntmle S0. 1. Pcntwie No. 2. Cras test not reliiahle. 1)0 not perform. 6.3 EV7-W19 6.3 EV7-32115 6.3 ET1-7020 6.3 II S3G80 6.3 Tw2070 6.3 KT6-10; O 6.3 lISlM485 6.3 HS$34Pf 6.3 HS .mo 7.5 EVW2030 7 5 Eve. 1030 7,.5 l:vi-tio80 7.5 EV3.109O 7.5 EV7-0860 7.5 EV2-301O 7 5 ,7-6080 7,5 EV2.1OOO 7.5 EV7. W60 7.5 13 V2 -3010 7,5 I?V3 9170 7.5 EV7-Y860 7.5 EV(XJO1O 7.5 I?v?olo 7.5 I? V7.6080 7.5 E”2-lo30 7.5 I?-; .-on(lo 7,5 I?-2.3olo 7 5 11 Y4-5060 7.5 IIY1 2030 10.0 EVi-(i080 100 EV2-103O 10.0 I? V2-1030 10.0 EYLPXWO 10.0 EVLM080 10,0 EV9-6780 10,0 I? V1-!030 10.0 EV3 tiuo 10.0 Evl LIOxo 10 0 F:-i (,370 100 EV9-IOSO 10.0 Evi Ywl 10,0 EV2-J361 7.5 ER3-2tm 10.0 EV2-7930 10.0 EV84790 10.0 EV2-103O 10.0 I?v7-6a90 10.0 I?,3-low 10.0 Ev7-m90 131as ,SIIUJZ( nnw 231 ?3. .B ,. ,511 Yi1) 11u o70 A o70 .1 17r 281) 111) “b , c 2 ,511 65r o.r) 1911 XJ .1) 101) o0 .i o0 A .3 ., D 23II 101) ?011 .3 . . 1) .3 ,r u 241; ?411 17r oS3 . o53 .912010 D(#)45 #Hold down pushbutton 2-DIODE and reas pushbutton 3-M UT. C OND. 12DE8 . . . . . . .12.6 Ev7-!?691oOA232 Pentode sect. Make no gas test, 12DE8 . . . . . . .12.6 E VP-20211o35A240 Diode sect. WDF5 . . . . . . .12.6 EVO-WSOo15 A740 Plate No, 1. 12DF6 . . . . . . .12.6 EVW103Oo15 A740 Plate No, 2 12DF7 . . . . . . .12.6 EV7+3S012 .-. -. B332 Trlode No. 1. 12DF7 . . . . . . .12.6 Ev2-103o12 B332 Triode No. 2. 12DK7 . . . . . . .12.6 EVC-3721o25 A254 Tetrode asct. Make no gas test, 12 DK7 . . . .-.12.6 EV04Y20oOA225 Diode No, 1, 12DK7 . . . . . . .12.6 Evo-9020oOA225 Diode No. 2, 12DL8 . . . . . . .12.6 EVW3627o48 A260 Tetrode acct. Make no gas test. 12DL8 . . . . . . .12.6 EVO-90S0oOA240 Diode No. 1, 12DL8. .-.12.6 EVO-108OoOA240 Diode No. 2, 12DM4 . . . .-12.6 HYO-5020o25A750 12DM5 . . . . . .12.6 E T2-761O10 - D(#) 45 #Hold down pushbutton 2-DIODE and press pushbutton 3-M UT. CON D. 12DQ6 . . . . . . .12.6 Hs5-W3026 D330 Cap connects to plate. 12DQ7 . . . . . . .12.6 E V2-7819O ._. -. D340 12DS7 . . . . . . .12.6 EV7-36S41o53A230 Tetrode sect, Make no gas b3st. 121) So.12.6 Evr+90s0oOA232 Diode No. 1. 40 TB 11-6625-274-12/1 DATA TAilLE-Continued Mid- tnurm Biae Shunt Rarwe Prea.r W1U8Notatiow IzDST :_ 12!)T5 ._ MXT _ MDT? . 12 DT8._ :2CT8 . 12 DU7.-._ 12.6 12.6 12.6 12.6 12.6 12.6 12.6 EVO-108O EV39170 EV7-6080 EV2-103O EV7-60%S EV2-1039 EVO-3621 00 31 - 12 12 . . . . . . . 10 . . . . . 10 . . . . 040 00 00 00 00 00 066 00 00 60 . . 12 .-. 24 ._.- 29 0 062 048 042 00 0Z3 24 -. 26 . . . . 018 00 013 25 . . 00 31 - 024 00 A“ c B B c c A A A A A A A A A c B B A A A A A -k It B A A A D A G A A 2 8 a 3 3 8 2 2 2 2 2 2 2 2 2 3 3 3 2 2 2 2 2 2 2 3 2 2 2 3 2 2 2 2 32 60 82 32 60 40 60 16 16 14 16 16 32 32 82 66 32 66 S6 60 82 60 22 60 30 16 60 28 88 30 60 60 60 6 Diode No. 2. Triode No. 1. Triode No. 2. Triode No. L Triode No. 2. Tetrode sect. Malta no gas trot. Diode No. 1. Diode No. 2. Triode seek Make no gas test. Diode No. 1. Diode No. 2. Tetrode acct. Make no ma test. Diode No. 1. Diode No. 2. Triode No. 1. Triode No. 2. Triode No. L Make no Ras test. Triode No. 2. Make no gas test. Diode sect. Tetrode sect. Make no gaa teat. Triode seet. Make no gas test. Pentode sect. Triode met. Make no ICaS test. Pentode mt. Make no ma teat. Triode sect. Make no gaa teat, Make no gas teat. Trinde sect. Make no 17M - 12DIY7 _.- 12 DU7.-. 12 DV7 . . . ._. 12.G 12.6 12.6 EVO-9020 EVO-7020 EVO-6087 12Dv7_ 12 DV7. 12DV8 . . . 12.6 12.6 12.6 EVO-3O1O EVO-2O1O EV04627 12DV8 - 12DV8. -. 12DW5 . . . . 12DW7 . ._ 12 DW7. . 12DW8 .- 12.6 12.6 12.6 12.6 12.6 12.6 EVO9080 EVO108O EV3-91?0 EV7-6080 EV2-1tE30 EVT-6080 12DW8 . .-EV2-103O12.6 12DW8 . . . 12DY8._ 12.6 12.6 EVO-11080 EVO-3621 12DY8 . . 12 DZ6.-. 12 DZ8 . . . . . 12 DZ8.- . . . . . 12EA6 . 12 EC8.-. 12.6 12.6 12.6 12,6 12.6 12.6 EVO-8079 ETZ6571 EV36720 EV1-9080 ET26571 EVO-7689 12EC8 .- 12ED6 ._._ 12EG6 - 12EH5 . ._. 12EK6 . - 12 EL+-._. 12.6 12.6 12.6 12.8 12.6 12.6 EVO-2U31 ET2-761O ET7-6521 ET2-T610 ET265i 1 ETo-2071 41 TB 11-6625-274-12/1 DATA TABI. EContinued Mini. mum B;as Shunt Range Press talueXotatio,aTube twe Filament Selecbra 12 ELF. _._. 12EL6 12 EM6. . . . . . 12.6 12.6 12.6 ETO-G070 ETOGO?O EVO-3621 II o 0 1) 40 29 0 0 12 :30 c1 o 23 0 0 0 0 0 11 11 11 11 40 2.5 0 0 0 0 30 0 0 ,-, o 0 0 0 0 0 0 0 0 0 0 0 43 10 0 34 0 0 u “. A A A D D A A 3 A A A A A A A A A B B B n A A A A A A A 2 2 2 3 3 2 2 3 2 2 2 2 2 2 2 2 2 3 3 3 3 2 2 2 2 2 2 2 20 ?0 60 Diode No. 1. Diode No. 2. Tetrm!e sect. Make no zas test. Diode sect.12 EM6 . . . . . . . . 12EN6 .