Keithley 6512 Instruction Manual page 129

Model 6512 Digital Board, Parts List (cont.)
CIRCUIT DESIG.
U117,128
U118,135
U119
U120
U121,122
U126
U129
U130
U133
U136,145
U137
U138
U139
U143
VR102
VR103
W101
Y101
Y102
DESCRIPTION
IC,QUAD 2 INPUT NOR,74HC02
IC, TRIPLE 3 INPUT NAND, 74HC10
IC,OCTAL INTERFACE BUS TRANSCEIVER,75161
IC,OCTAL INTERFACE BUS,75160
IC,OPTOCOUPLER,2601
IC,DUAL D-TYPE FLIP FLOP,74HC74
INTEGRATED CIRCUIT
IC, OP-AMP, ICL7650
IC,8 STAGE SHIFT/STORE REGISTER,4094
IC,TRIPLE 2 CH MULTI/DEMUX,4053
IC, DUAL, VOLTAGE COMPARATOR, LM393
INTEGRATED CIRCUIT
IC, 18V OP-AMP, TLC 271
IC, TRIPLE 3-INPUT OR, 4075
DIODE,ZENER 6.44V,IN4577AGED (DO-7)
DIODE, ZENER 5.1V,IN751(DO-7)
CONN,3 PIN
CRYSTAL, 3.276800MHZ
CRYSTAL, 1.2288MHZ
KEITHLEY
PART NO.
IC-412
IC-341
IC-299
IC-298
IC-239
IC-337
IC-136
IC-316
IC-251
IC-283-1
IC-343
IC-408
IC-347-1
IC-143
DZ-58
DZ-59
CS-339-3
CR-21
CR-19