Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 344

REPLACEMENT PARTS LIST
IVJ-8718-19TE HF RErp.F\F]
REF
DESIG
DESCRIPTION
QTY
PER
MANUFACTURER'S
MFR.
RECM
ASSY PART NO.
CODE VENDOR
U18
Same as Ul 7
—J
trip
Integrated Circuit
MC1408L8
0-4713
L'20 Integrated Circuit
ADcnannpcN
27014
U21 Integrated Circuit
SN74LSD8N
01295
L'22
Integrated Circuit
NE555N
18324
VR1 Diode, Zener: 3.3 V
1N746A
80131
VR2 Diorie. Zener: 12 V
1N759A
80131
VR3
Diode, Zener: 5.1 V
2 1N751A
80131
VR4 Same as VR3
5-1 lfi
Figure 5-39. Type 796032-2 IF Interface (A6A2)
Location of Components