model 428 current amplifier instruction manual

Model 428 Digital Board, Parts List

Circuit Desig.

CR5OOCR503

J1003* J1004 J1005,J1007 J1006

R5OO,R501 R502 R503,R507 R504,R506 R505 R508,R509

u500 U501,U502 u503 u504 u505 U506 u507 U508 u509 u510 u511 U512 u513 u514* u515* U516*

Description

CAl?,,O.47UF,20%,5OV CERAMIC CAP,47UF,-20+100%,25V,ALUM ELEC CAP,.OlUF,20%,50V,CERAMIC

CAP,15l?F,10%,200V,CERAMIC CAP,l5PF,lO%,200V,CERAMIC CAI’,.lUF,20%,50V,CERAMIC CAP,10UF,lO%,20V,TANTALUM ELECTROLYTE

DIODE,SILICON,IN4148 (DO-351

CONN,RIGHT ANGLE,24 PIN CONN,STRAIGHT POST HEADER,3-PIN CONN,HEADER STRAIGHT SOLDER PIN CONNECTOR, HEADER

RES,18K,5%,1 /CW,COMPOSITION OR FILM RES NET, 3.3K,2%,.6W RES NET,3.3K,5%,1.25W RES,1OO,5%,1/4W,COMFOSITION OR FILM RES,3.3K,5%,1/4W, COMFOSITION OR FILM RES NET,3.3K,2%,.25W

IC,+5V VOLTAGE REGULATOR,LM294OCT IC,OCTAL TRI STATE BUFFER,74HCT240 IC,DUAL 4 BIT COUNTER,74HCT393 IC,VERSATILE INTERFACE ADAPTER,G65SC22 IC,DUAL D FLIT’ FLOP W/SET & RESE,74HCT74 IC,8-BIT PARALLEL TO SERIAL,74HCT165 IC, AND-OR-INVERT ARRAY,I’AL16L8H-15 EPROM, PROGRAMMED IC,8 BIT MICROPROCESSING UNlT,MC68BO9 IC,I’ROG RAMMABLE E2ROM 2816B IC,(8KX8)HI SPEED STATIC CMOS RAM,6264 IC,QUAD 2-INPUT NOR GATE,74HCT02 IC,SUF’PLY VOLTAGE SUPERVISOR,TL7705AC IC,GPIB ADAl’TER,9914A IC,OCTAL INTERFACE BUS TRANSCEIVER,75161 IC,OCTAL INTERFACE BUS,75160

CRYSTAL,8.OOOOMHZ

Keithley Part No.

C-237-.47 c-314-47 C-365-.01

C-406-15P C-406-15P C-365-.1 C-204-10

RF-28

cs-501 cs-533-3 CS-368-20 CS-715-4

R-76-l 8K TF-101 TF-140 R-76-100 R-76-3.3K TF-77

IC-576 IC-683 IC-462 LSI-86 IC-515 IC-548 IC-687A 428-800A LSI-65 LSI-83 LSI-66 IC-510 IC-602 LSI-49 IC-299 IC-298

J-15

CR-24-l

*428-FROG ONLY