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37-630 Possible Silver Migration Problem
Chuck Schwark
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Posts: 1,703
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City: Evanston, IL
#3

07-01-2011, 11:14 AM
Yes, there is a 37-630. Very similar to the 37-620, and it has a Shadow Meter.

Micas can go bad. Refresh them with new dipped silver-mica types.

Chuck
Chuck Schwark,
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Re: 37-630 Possible Silver Migration Problem - by Chuck Schwark - 07-01-2011, 11:14 AM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration