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Philco 70 antenna lead
#5

Yes, that wire will not pick up much interference as routed - the RF at that level won't be affected, and if you have stuffed the original filter caps on top, it won't cause much of a problem. The main problem with these old radios of that era is the finely wound coils (such as the main antenna coil from that wire) has turned to basically mush (don't know exactly what they coated it with or soaked it in), cut one open and examine with a magno glass to see. Put a signal tracer on that front end and hear it, that sound is amplified thoughout the remaining stages and ruins it, the radio just won't filter it out and it sounds nothing like when it was new - that coupled with all the interference of todays meanies that hit it. You have to rewind these with fresh wire and start at the front end to get any sort of good fidelity, can you say get a coil winder? Then you can work your way from the front end to the final result. Turn the tone cap off and hear the awful sound, that is the mush I am speaking of, it should not sound that way. I have found some good sounds and decidedly bad sounds out of the 70. The IF coils suffer from this as well.


Messages In This Thread
Philco 70 antenna lead - by Jim Dutridge - 12-25-2024, 01:54 PM
RE: Philco 70 antenna lead - by morzh - 12-25-2024, 02:21 PM
RE: Philco 70 antenna lead - by Jim Dutridge - 12-25-2024, 03:55 PM
RE: Philco 70 antenna lead - by Dave Schings - 12-26-2024, 04:30 PM
RE: Philco 70 antenna lead - by radio1 - Yesterday, 07:26 PM
RE: Philco 70 antenna lead - by morzh - Yesterday, 07:46 PM



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