Service tips

Service tips

This section’s purpose is to disseminate service information, hints and tips. It includes personal troubleshooting info, tips from newsgroups and various issues of the Philco Serviceman bulletins.

If you have any favorite or applicable Philco servicing hints, links or tips you’d like to share here with everyone, just contact me and I’ll add your information.

Rebuilding Aluminum Can Electrolytics
Rebuilding Mershon Wet-Electrolytic Capacitors
Model 80 Performance Modifications
Models 80, 81, 84 & 37-84 I.F. Resistor Mod
Model 89 Oscillator Troubles
Common Troubles – Case Histories of Early Models
Blown Pilot Lamps and 35Z5 Open Filament
Models 70 and 90 Intermittent Operation
Philco Parts Numbering System
Philco Code and Run numbers explained
37-690 Bass Amplification described
Vernier Repair Models 38-8, 38-9, 38-10
Aligning the Magnetic Tuning System
Wire-wound control repair
Shadow Meter Repair & Adjustments
1942 FM Dial Scales Explained & FM Converter
Model 17 Sudden Frequency Shift
Models 118/201 Problems at 12 MC.
Model 16 and 17 Q-AVC Adjustments
Model 38 Code 123 Excessive Noise
Model 80 Alignment Tips
Dial Drive Slip – Models 116, 640, 641, 650, 660, 680
Oscillation Trouble in the 71 & 91
Philco 1937 Sub-chassis Service Tip
Model 81 Police Band Adjustments
37-93 Low Volume – No AVC
Model 16B Squealing or Motorboating
Model 37-116X Oscillator Failure
Model 16 Oscillator Failure
37-610 No Reception 7.35-22 MC
Model 16 Tuning Drive Slipping
37-620 No Reception 7.35-22 MC
Oscillation Model 16, Code 125/126
37-630 No Reception 7.35-22 MC
Dial Slip in Models 28, 29, 45
37-630 Intermittent Reception BCB
60 cycle Hum in the Model 60
37-650 Intermittent Fading
60 cycle Hum in the Model 54
37-650 No Reception on BC Band
Model 38 Parasitic Oscillation
37-690 Intermittent Noise
Oscillator Failure in Model 38
37-690 Hum in Sets Prior to Run 3
Rewinding Philco RF Coils
I-F Wave Trap and Special Capacitor