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Philco 39-7 not tracking
Jimradio
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Posts: 194
Threads: 34
Joined: Jul 2016
City: Spring Lake MI
#1

09-25-2023, 03:20 PM
Restoring this 39-7, first I changed the electrolytes (2) then tested the radio. It played but I noticed the dial was way off and not tracking, the pointer is correct to the variable capacitor. I replaced all paper caps brought the radio up, the voltages looked okay, but still have a bad tracking problem. Example station 1370 comes in at 1200 the lower end is closer but still off. I did an alignment the IF went well. Tried to do the second step at 1550 KC adjusting 3B and 3A did nothing.
I believe 3B is the oscillator.
This is first for me the dial not tracking properly.
Help!
Jim
Spring Lake MI
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Messages In This Thread
Philco 39-7 not tracking - by Jimradio - 09-25-2023, 03:20 PM
RE: Philco 39-7 not tracking - by Chas - 09-25-2023, 09:46 PM
RE: Philco 39-7 not tracking - by Jimradio - 09-26-2023, 02:23 PM
RE: Philco 39-7 not tracking - by Chas - 09-26-2023, 04:24 PM



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