Manual Revision CARD 4/3/1961 1/5/1977 METER 1 1 (not used w/zener cell) TEST INSTRUCTIONS 1B ZENER CALIB UA 1C ZENER CALIB MV 1D SHORTS 2 MEG NO GO 2 2 SHORTS 1 MEG GO 3 3 SHORTS 20 MEG NO GO 4 4 SHORTS 10 MEG GO 5 5 FIXED BIAS CAL NEG 6 6 FIXED BIAS CAL POS 7 7 MAIN B+ CALIB 8 8 GM BAL LOW IB 9 9 GM BAL HI IB 10 10 SIG REG AND AMPL 11 11 FIL. STAND. ADJUST 12 12 FEEDBACK B+ 13 13 6CD6 SCRN ADJUST 14A 14A MAIN B+ 10V 15 15A MAIN B+ 20V 16 16A MAIN B+ 20V 17 17A MAIN B+ 60V 18 18A MAIN B+ 110V 19 19A MAIN B+ 160V 20 20A MAIN B+ 210V 21 21A MAIN B+ 260V 22 22A MAIN B+ REG 23 23 DC FIL-CATH ACT. 24 24 AUX B+ REG 25 25 METER SHUNT 1280 26 26 METER SHUNT 640 27 27 METER SHUNT 320 28 28 METER SHUNT 160 29 29 METER SHUNT 80 30 30 METER SHUNT 40 31 31 METER SHUNT 20 32 32 METER SHUNT 10 33 33 METER MULT 25344 34 34 METER MULT 1067 35 35 METER MULT 100K 36 36 DECADE RES. 10 37 37 DECADE RES. 20 38 38 DECADE RES. 30 39 39 DECADE RES. 40 40 40 DECADE RES. 100 41 41 DECADE RES. 200 42 42 DECADE RES. 300 43 43 DECADE RES. 400 44 44 DECADE RES. 1000 45 45 DECADE RES. 2000 46 46 DECADE RES. 3000 47 47 DECADE RES. 4000 48 48 DECADE RES. 10K 49 49 DECADE RES. 20K 50 50 DECADE RES. 30K 51 51 RELAY NO GO 52A 52A RELAY DC GO 53A 53A