Tektronix 475 - Page 232

475 EFF SN B 100000-up
Page 1 of 5
ELECTRICAL PARTS LIST AND SCHEMATIC CORRECTION
CHANGE TO:
A3
670-2240-01
VERT PREAMP Circuit Board Assembly
C109
283-0191-00
0.022 pF, Cer, 50 V
C112
281-0122-00 2.5-9 pF, Var
C139 283-0238-00 0.01 pF, Cer, 50 V
C209
283-0191-00
0.022 pF, Cer, 50 V
C212
281-0122-00
2.5 -9 PF, Var
C239
283-0238-00
0.01 pF, Cer, 50 V
C398
281-0628-00 15 pF, Cer, 600 V
L171
276-0528-00
Core, ferramic suppressor,
selected
L174
276-0528-00 Core, ferramic suppressor,
selected
L271
276-0528-00 Core, ferramic suppressor,
selected
L274
276-0528-00
Core, ferramic suppressor,
selected
Q178
151-0434-00
Silicon, P N P , 2N4261
Q188
151-0434-00
Silicon, PNP, 2N4261
Q278
151-0434-00
Silicon, PNP, 2N4261
Q288
151-0434-00 Silicon, PNP, 2N4261
R109
311-1268-00
10 kfl, Var
*R110
311-1228-00
10 kfl, Var
R113
317-0681-00
680 Q, (nominal value) selected
R137
317-0242-00
2.4 k£2 (nominal value) selected
R138
317-0202-00 2 kH (nominal value) selected
R145
315-0620-00
62 a, 1/4 W, 5%
R176
311-1226-00
2.5 kft, Var
R209
311-1268-00
10 kft, Var
R213
317-0681-00 680 Q. (nominal value) selected
M19,911/573
*N ote : SN B010100-B099999 R110 was 311-1268-00