07-03-2008, 09:28 AM
Welcome, Pilkco! 
Glad to have you aboard.
Just thought I would mention that while some Philco field coils may run warm (especially those made after 1938), they should never run HOT! If they do, a problem is indicated.
And as others have mentioned here, today's line voltages are higher than they were during radio's Golden Age; so transformers will run warmer (sometimes hotter). It is always good to reduce the line voltage through use of a buck/boost transformer set-up or dropping resistor, if you plan to run your radio a lot.
The voltage here varies between 125 and 128...the power transformers of various radios I have had here vary from barely lukewarm to very hot at full line voltage. My friend Ed Locker sent me a bucking transformer setup, mounted in a metal enclosure, which reduces the line voltage to 110, and makes those power transformers run cooler.
Finally, whenever I have to have a power transformer rewound, I ask for a primary of 130 volts in order to eliminate the hot transformer problem.
Glad to have you aboard.Just thought I would mention that while some Philco field coils may run warm (especially those made after 1938), they should never run HOT! If they do, a problem is indicated.
And as others have mentioned here, today's line voltages are higher than they were during radio's Golden Age; so transformers will run warmer (sometimes hotter). It is always good to reduce the line voltage through use of a buck/boost transformer set-up or dropping resistor, if you plan to run your radio a lot.
The voltage here varies between 125 and 128...the power transformers of various radios I have had here vary from barely lukewarm to very hot at full line voltage. My friend Ed Locker sent me a bucking transformer setup, mounted in a metal enclosure, which reduces the line voltage to 110, and makes those power transformers run cooler.
Finally, whenever I have to have a power transformer rewound, I ask for a primary of 130 volts in order to eliminate the hot transformer problem.
--
Ron Ramirez
Ferdinand IN
