new power transformer for a Phlco 42-350

[vintagecollect]

I found a perfect replacement transformer for a philco radio 42-350.


info:

search "PT275.2 POWER TRANSFORMER TUBE AUDIO 275-0-275 x100mA"

on fleabay



http://cgi.ebay.com/ws/eBayISAPI.dll...:X:RTQ:US:1123

company info:

But the MusicalPowerSupplies site will get you the info you need. I've done a few Radio parts. I can custom wind smaller PT's and OT's if there's something that needs resurrecting.MattRegards,

Matt Sespaniak
Musical Power Supplies, Inc
MusicalPowerSupplies

Replacement part seems high quality at a good price. The original xfrmr is small and just enough to power up unit, can't handle short failures. I don't see many of these sets surviving and probaly due to minimal size power transformer. New unit is heavier duty more so than puny OEM part, this IS the only part seen for sale with a tap for filaments. Tap for biasing originally?

Tapped filaments go to XXFM tube, NOT ON schematic, read Rider's -- philco section, 14-141-- and you'll see production changes for code 121. Everything is mentioned in changes, even the new power transformer, WHICH IS Philco part # 32-8220 starting w/ prod. run 2. Schematic shows ONLY one filament secondary winding for ALL tubes, NOT the other for XXFM tube. I was able to tear cover off bad part and realize leads going to XXFM center tapped for biasing. Read somewhere OEM part only rated for 50 ma, HV winding, mentions extra filament connections.

I seen that code on philco for years and was wondered if it meant prod. changes. I'm excited about getting new part and willing to deal w/ mounting hassles as new part will be better quality than original.