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Philco 38-10 Alignment
#1

Hello, I'm having a hard time dialing in the RF alignment on this radio. IF alignment has been done with all four compensators peaked. I set the high frequency at 1500 and adjust #7 to peak on the second maximum peak then attempt to do the low frequency #9 at 580 I can't find the tone anywhere. The best I can do is set the gen to 740 then I find the tone way down at 500. I can not adjust #9 to bring it up to 740. The closest I can get is 700. When I go back to 1500 I find it is way off. There is a huge amount of interaction between #7 and #9. I am using an Eico 330 for the gen and a frequency counter to verify I am on the correct frequency. Bottom line is I can't get anywhere close to the low frequency setting of 580.

I have cleaned the 7/9 compensator fins and micas. They were pretty clean as it was.

See note (bottom right) in the alignment instructions.

Dan


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Messages In This Thread
Philco 38-10 Alignment - by dconant - 02-15-2026, 06:34 PM
RE: Philco 38-10 Alignment - by Steve Davis - 02-15-2026, 07:43 PM
RE: Philco 38-10 Alignment - by MrFixr55 - 02-15-2026, 09:20 PM
RE: Philco 38-10 Alignment - by dconant - 02-16-2026, 09:10 AM
RE: Philco 38-10 Alignment - by dconant - 02-16-2026, 02:59 PM
RE: Philco 38-10 Alignment - by MrFixr55 - 02-16-2026, 09:42 PM
RE: Philco 38-10 Alignment - by dconant - 02-17-2026, 09:54 AM
RE: Philco 38-10 Alignment - by MrFixr55 - 02-17-2026, 09:55 AM
RE: Philco 38-10 Alignment - by dconant - 02-17-2026, 12:04 PM
RE: Philco 38-10 Alignment - by dconant - 02-17-2026, 12:25 PM
RE: Philco 38-10 Alignment - by RodB - 02-17-2026, 12:37 PM
RE: Philco 38-10 Alignment - by dconant - 02-18-2026, 10:31 AM



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