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Philco Model 20 Troubleshooting
mgambuzza
Junior Member
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Posts: 19
Threads: 10
Joined: Jul 2012
City: Syr NY - USA
#1

01-11-2013, 04:16 PM
I was making big progress on this set - replaced all caps and resistors - what a difference in Rated vs Actual for the resistors. Difference shown below

Resistor 12 - 50kohm - tested 66k actual
Resistor 15 - 250k - tested 423k actual
Resistor 17 - 500k - tested 993k actual
Resistor 18 - 100k - tested 210k actual
resistor 20 - 500k - tested 1.3M actual

Now I powered up and no audio - replaced all tubes from another working set and same results.I then started to use a screwdriver and touch the 1st RF tube - nothing, 2nd RF - Nothing, finally when I touched the third which is the Detector tube - full audio and I can select stations!

Seeking the advice of the experts for assistance. Where should I look next? I am hoping I am one step or component from a success story - but it is finding that one defective part.
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Philco Model 20 Troubleshooting - by mgambuzza - 01-11-2013, 04:16 PM
RE: Philco Model 20 Troubleshooting - by Arran - 02-06-2013, 11:51 PM



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