03-03-2008, 05:13 PM
The 37-624 is a 6 volt set. The pilot lamp is in series with the 1C7 and 1J6 tubes, both which need 2 volts at 240ma. The pilot lamp is shunted by a 16.7 ohm resistor, which means it needs to be 2 volts at 120ma, since the voltage table says that the 1C7 and 1J7 filament voltage is 2 volts each and the supply is 6 volts.
The original lamp was not marked, and was destroyed getting it out of the typical Philco pilot lamp socket mess. But it was a bayonet type and tubular shape or T-3-1/4 type.
I don't see a lamp rated 2 volts at 120ma in my catalogs. The #49 is rated at 2 volts at 60ma, but is a globe type.
Anybody know what lamp I should use? I hope it's not one of the rare types no longer available.
Thanks!
The original lamp was not marked, and was destroyed getting it out of the typical Philco pilot lamp socket mess. But it was a bayonet type and tubular shape or T-3-1/4 type.
I don't see a lamp rated 2 volts at 120ma in my catalogs. The #49 is rated at 2 volts at 60ma, but is a globe type.
Anybody know what lamp I should use? I hope it's not one of the rare types no longer available.
Thanks!
