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Philco 70
#8

> I can move the 640 station on the dial up or down, slightly, using the #7 600 Khz trimmer.

I would think you should be able to move it 100kc or better. Not quite sure how much slightly is?
If you have a scope you can look at the osc output at the grid cap of the 24A mixer. Check the amplitude.
I think you'll find it's dropping off as you get lower in frequency

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
Philco 70 - by Tubesforme - 03-26-2017, 06:22 PM
RE: Philco 70 - by Radioroslyn - 03-26-2017, 07:49 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 07:31 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 09:09 PM
RE: Philco 70 - by morzh - 03-26-2017, 07:50 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 02:15 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 09:06 PM
RE: Philco 70 - by Radioroslyn - 03-26-2017, 08:43 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 02:07 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 02:28 PM
RE: Philco 70 - by Radioroslyn - 03-27-2017, 03:22 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 04:04 PM
RE: Philco 70 - by Tubesforme - 04-06-2017, 02:02 PM
RE: Philco 70 - by Radioroslyn - 03-27-2017, 04:08 PM
RE: Philco 70 - by Tubesforme - 03-27-2017, 07:26 PM



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