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Philco 89 Power Transformer
Jim Dutridge
Senior Member
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Posts: 290
Threads: 54
Joined: Mar 2007
City: Toledo State, Province, Country: OH
#2

10-29-2023, 06:08 PM
My suggestion is to remove all tubes and lamps. Throw the transformer on a variac and slowly raise the voltage in increments of 10 volts while monitoring the current draw. 

Your looking for basically zero current with no erratic changes in current as the voltage is increased up to the operating voltage stated for the radio. Let it run for about 15 minutes and if you don't see the current movement as previously mentioned you should be good to go.
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Messages In This Thread
Philco 89 Power Transformer - by dconant - 10-29-2023, 01:37 PM
RE: Philco 89 Power Transformer - by Jim Dutridge - 10-29-2023, 06:08 PM
RE: Philco 89 Power Transformer - by Steve Davis - 10-29-2023, 10:02 PM
RE: Philco 89 Power Transformer - by dconant - 10-30-2023, 08:10 AM
RE: Philco 89 Power Transformer - by radiorich - 10-30-2023, 09:28 AM
RE: Philco 89 Power Transformer - by dconant - 10-30-2023, 09:35 AM
RE: Philco 89 Power Transformer - by dconant - 11-07-2023, 05:19 PM



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