Board
Part #
Modulator
85-127P221
85-127-1
85-127-2
85-127-3
IF
85-128P222
85-128P376
85-128-2
85-128-3
85-128-4
85-128-5
Bandpass
85-129P223
85-129-2
85-129-3
85-129-4
85-129-5
85-129-6
Audio
85-130P224
85-130-1
85-130-2
85-130-3
85-130-4
RF Driver
85-131P225
85-131-2
85-131-3
85-131-4
85-131-5
85-131-6
Crystal
85-132P226
85-132-1
Heterodyne
Oscillator
85-133-1
Driver Grid
85-133-2
Driver Plate
85-131P229
85-133-3
Table 11. Printed Circuit Board Part Numbers and Usage
Printed Circuit Boards (PCBs)
Used In
SB-100, SB-101
SB-101
HW-100, HW-101
SB-102
SB-100
SB-101
SB-101, SB-102
HW-100
HW-101
SB-102
SB-100
SB-101
HW-100
SB-102
HW-101
SB-100, SB-101
SB-101
HW-100
SB-102
HW-101
SB-100
SB-101
HW-100
SB-102
SB-102
HW-101
SB-100
HW-101, SB-101, SB-102
SB-100
HW-101, SB-101, SB-102
SB-100
HW-101, SB-101, SB-102
SB-100
HW-101, SB-101, SB-102
Comments
R104 and R105 are 47, R106 is 22k, R110 is unused,
Meter zero pot is 10K and mounted externally
R106 changed to 33k, R110 changed to 510
Board is not screened for aux oscillator components
Board is not screened for sidetone volume control
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