Replaceable Electrical Parts
1780R-Series Service Manual 8–89
Replaceable electrical parts list (cont.)
Component
number Mfr. part numberMfr. codeName & description
Serial no.
discont’d
Serial no.
effective
Tektronix
part number
A5U548 156–1312–00 IC,MISC:BIPOLAR,SAMPLE/HOLD,LOW DROOP
RATE,SMP–11,DIP14.3 24355 SMP11FY
A5U550 156–2263–00 IC,LINEAR:BIPOLAR,VOLTAGE REGULATOR,
NEGATIVE,–12V,100MA,4%,MC79L12ACP,TO–92 04713 MC79L12ACP
A5U553 156–2735–00 IC,LINEAR:BIPOLAR,VOLTAGE REGULATOR,
POSITIVE,12V,100MA,5%,MC78L12ACP,TO–92 01295 UA78L12ACLP
A5U560 156–1200–00 IC,LINEAR:BIFET,OP–AMP,QUAD,TL074CN/LF347N/MC
34004P,DIP14.3 01295 TL074CN
A5U565 156–1312–00 IC,MISC:BIPOLAR,SAMPLE/HOLD,LOW DROOP
RATE,SMP–11,DIP14.3 24355 SMP11FY
A5U595 156–2091–00 IC,DIGITAL:ALSTTL,GATE,QUAD 2–INPUT
NAND,74ALS00,DIP14.3,TUBE 01295 SN74ALS00AN
A5W475 131–0566–00 BUS,CONDUCTOR:DUMMY RES,0.094 OD X 0.225 L
W/WIRE LEADS 57668 TPW 02–000
A5W548 131–0566–00 BUS,CONDUCTOR:DUMMY RES,0.094 OD X 0.225 L
W/WIRE LEADS 57668 TPW 02–000
A5Y264 158–0300–00 XTAL UNIT,QTZ:12.0 MHZ,50 PPM,SERIES HC–49U
W/3RD LEAD 61429 FOX120X
A5Y435 158–0360–00 XTAL UNIT,QTZ:20MHZ,0.005%,SERIES,HC49 W/3RD
LEAD 20 OHM 14301 011–661–03390