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49-905 Mica Disease-FOUND IT!
Eric Adams
Phorum Expert
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Posts: 825
Threads: 113
Joined: Aug 2012
City: The Villages State, Province, Country: Florida
#1

03-14-2014, 12:44 PM
After finishing (or so I thought) my 49-905, It has now started to make a crackling noise on AM only that sounds like the dreaded Mica disease. From the schematic I don't see any mica caps inside the AM IF cans. Any ideas?
http://www.nostalgiaair.org/PagesByModel...013674.pdf
Thanks,
Eric
The Villages, FL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org

(This post was last modified: 03-15-2014, 04:33 PM by Eric Adams.)
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Messages In This Thread
49-905 Mica Disease-FOUND IT! - by Eric Adams - 03-14-2014, 12:44 PM
RE: 49-905 Mica Disease - by morzh - 03-14-2014, 01:13 PM
RE: 49-905 Mica Disease - by Eric Adams - 03-14-2014, 01:15 PM
RE: 49-905 Mica Disease - by Mondial - 03-14-2014, 01:58 PM
RE: 49-905 Mica Disease - by Eric Adams - 03-14-2014, 02:07 PM
RE: 49-905 Mica Disease - by Mondial - 03-14-2014, 02:11 PM
RE: 49-905 Mica Disease - by Eric Adams - 03-14-2014, 02:14 PM
RE: 49-905 Mica Disease - by Mondial - 03-14-2014, 02:31 PM
RE: 49-905 Mica Disease - by Eric Adams - 03-14-2014, 05:14 PM
RE: 49-905 Mica Disease - by Mondial - 03-14-2014, 06:02 PM
RE: 49-905 Mica Disease - by morzh - 03-14-2014, 08:22 PM
RE: 49-905 Mica Disease-FOUND IT! - by Eric Adams - 03-14-2014, 10:38 PM
RE: 49-905 Mica Disease-FOUND IT! - by Eric Adams - 03-15-2014, 04:33 PM
RE: 49-905 Mica Disease-FOUND IT! - by morzh - 03-15-2014, 09:03 PM
RE: 49-905 Mica Disease-FOUND IT! - by Eric Adams - 03-19-2014, 07:45 PM
RE: 49-905 Mica Disease-FOUND IT! - by Arran - 03-20-2014, 12:49 AM
RE: 49-905 Mica Disease-FOUND IT! - by Eric Adams - 03-20-2014, 01:09 AM



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