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Philco 90 electrolytic question
rghines1
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Posts: 190
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Joined: Oct 2005
City: Lexington, SC
#2

11-12-2008, 06:48 PM
The 6 uF cap was used for 60 Hz line frequency, 10 uF for 25-40 Hz power. Leave the original cans in the the radio for looks. Electrically they must be disconnected as they are likely leaking and would damage the power transformer and rectifier in short order.

A slight hum is normal. Rebuild the tone control too. Check the Tech Section here or philcorepairbench.com for the cap values.

No caps inside the power transformer. Caps you are seeing on the schematic should be inside a bakelite block. Rebuild this block too. Congrats on getting it working.

Richard
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Messages In This Thread
Philco 90 electrolytic question - by Guest - 11-12-2008, 02:00 PM
Re: Philco 90 electrolytic question - by rghines1 - 11-12-2008, 06:48 PM
Re: Philco 90 electrolytic question - by Guest - 11-13-2008, 05:59 PM
Re: Philco 90 electrolytic question - by Guest - 11-15-2008, 02:58 AM



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