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Linear Mode
New to this site and have a Philco 20 question.
Ron Ramirez
Silent Key
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Posts: 13,776
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Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#3

12-06-2006, 10:23 AM
Jonathan - welcome! Another free schematic may be found here.

For the early Model 20 with only one or two trimmers:
http://www.philcoradio.com/tech/images/20a.jpg

For the common Model 20 with three trimmers on the tuning condenser gang:
http://www.philcoradio.com/tech/images/20b.jpg

The 20 could be modified to add AVC, but it would frankly be more trouble than it would be worth - removing coil ends from ground, adding terminals to coil forms, etc. Not to mention detracting from the originality of the circuit.
--
Ron Ramirez
Ferdinand IN
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New to this site and have a Philco 20 question. - by Guest - 12-01-2006, 10:17 PM
[No subject] - by Terry Burns - 12-06-2006, 09:27 AM
[No subject] - by Ron Ramirez - 12-06-2006, 10:23 AM
[No subject] - by Guest - 12-07-2006, 10:17 PM



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