Heathkit SB-10 Series Troubleshooting Manual page 8

ae.1.Modulator Printed Circuit Board 85-127-x................................................................109
ae.1.1.85-127P221 (SB-100, SB-101).................................................................................................................109
ae.1.2.85-127-1 (SB-101).................................................................................................................................... 109
ae.1.3.85-127-2 (HW-100, HW-101)................................................................................................................... 109
ae.1.4.85-127-3 (SB-102).................................................................................................................................... 109
ae.2.IF Printed Circuit Board 85-128-x..............................................................................110
ae.3.Bandpass Printed Circuit Board 85-129-x.................................................................111
ae.3.1.85-129P223 (SB-100)............................................................................................................................... 111
ae.3.2.85-129-2 (SB-101).................................................................................................................................... 111
ae.3.3.85-129-3 (HW-100)................................................................................................................................... 111
ae.3.4.85-129-4 (SB-102).................................................................................................................................... 111
ae.3.5.85-129-5 (??)............................................................................................................................................ 111
ae.3.6.85-129-6 (HW-101)................................................................................................................................... 111
ae.4.Audio Printed Circuit Board 85-130-x.......................................................................112
ae.4.1.85-130P224 (SB-100, SB-101).................................................................................................................112
ae.4.2.85-130-1 (SB-101).................................................................................................................................... 112
ae.4.3.85-130-2 (HW-100)................................................................................................................................... 112
ae.4.4.85-130-3 (SB-102).................................................................................................................................... 112
ae.4.5.85-130-4 (HW-101)................................................................................................................................... 112
ae.5.RF Driver Printed Circuit Board 85-131-x..................................................................113
ae.6.Crystal Switch Board 85-132-x...................................................................................114
ae.7.Het Osc, Driver Grid, and Driver Plate Switch Board 85-133-x................................115
af)Heathkit Linear Master Oscillators (LMOs)..........................................................116
af.1.LMO Part Numbers & Usage.......................................................................................116
af.1.1.Heathkit TRW LMO................................................................................................................................... 117
af.1.2.LMO Part Number 110-13......................................................................................................................... 118
af.1.3.LMO Part Number 110-32......................................................................................................................... 119
af.1.4.LMO Part Number 110-40......................................................................................................................... 120
af.1.5.SB-102 LMO (ver6)................................................................................................................................... 121
af.2.LMO Repair and Service Notes...................................................................................122
af.2.1.LMO Remove and Replace....................................................................................................................... 122
af.2.2.Heath Tube-Type LMO Repair.................................................................................................................. 124
af.2.3.Photos Showing Added Grounding Braid..................................................................................................127
af.2.4.Repairing and Recalibrating a Stuck LMO................................................................................................130
af.2.5.Heathkit SB-102 Transceiver LMO Stability Fix........................................................................................132
ag)Matching Heathkit Paint.........................................................................................133
ag.1.1.Matching Heathkit Paint: Part 1................................................................................................................133
ag.1.2.Matching Heathkit Paint: Part 2................................................................................................................134
HW & SB Series Manual Page 8