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Philco 90 RF coil pinout IDs
Bill068
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Posts: 2
Threads: 1
Joined: Oct 2011
#1

01-30-2012, 05:14 PM
Hi,

Here's a photo of my problem in troubleshooting a Philco 90:

[Image: http://i1160.photobucket.com/albums/q498...rtA1-1.jpg]

The Rider's sheet mentions cryptic abbreviations for coil pins (I believe) but I haven't decoded them. Can anyone help? The 90 I have is apparently the latest model chassis and works with 24As in the front end but not with 35s. Also, the RF section is not working so I'm assuming it's in the Antenna input coil. It looks good (no apparent corrosion, and I haven't removed it) but all resistance readings are infinity.
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Radioroslyn
Phorum Expert
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Posts: 7,305
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Joined: Dec 2009
City: Roslyn Pa
#2

01-30-2012, 06:32 PM
Sounds like it's time to rewind!!! Am getting PB home page.

Terry
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
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Bill068
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Posts: 2
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Joined: Oct 2011
#3

01-30-2012, 06:51 PM
Thanks for the reply and note that the photo didn't show. Here's an address that I just tested and it seems to work. Some of the examples of the nomenclature giving me a fit are within the circled area.

[Image: http://i1160.photobucket.com/albums/q498...hartA1.jpg]

(The web address is contiguous without the separation caused by the question mark on line 1.)
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