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A short in that old Philco 77
Steve Davis
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#2

08-12-2015, 08:04 PM
Quote:UPDATE: when I tried bringing the transformer up with no tubes in it and a dim bulb (15 watts) in series with my variac, I bee a faints glow around 70 volts and a soft glow at 110 volts. I guess that qualifies as a shorted transformer?
Probably not. A 15 watt lamp is too small and would probably glow with no load on the transformer. Bring it up to 115 volts and let it run for an hour or so with no load. If it doesn't get hot, it's probably a good transformer.
Steve
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Messages In This Thread
A short in that old Philco 77 - by ccomer1955 - 08-12-2015, 07:34 PM
RE: A short in that old Philco 77 - by Steve Davis - 08-12-2015, 08:04 PM
RE: A short in that old Philco 77 - by ccomer1955 - 08-12-2015, 09:33 PM
RE: A short in that old Philco 77 - by ccomer1955 - 08-13-2015, 11:41 AM



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