Posts: 4
Threads: 2
Joined: May 2011
can anyone tell me this. my model 50-1718 was working and now it doesn't none of the tubes light up when its plugged in. if one of the tubes are bad will it keep my 50-1718 from working. if it is a tube how do i tell which one is bad.
thank you all i am new to this but love old philco radio probably going to buy 3 more this weekend not model 50-1718 but other ones.
Posts: 7,323
Threads: 270
Joined: Dec 2009
City: Roslyn Pa
Hi Jim,
Yes on your set if one of the tubes filament is burned out (open) none of the others will lite up.So I've got a few questions for you. Can you read schematic? Do you know how to count the pins on your tubes? Do you have a volt/ohm meter? Schematic is here
http://www.nostalgiaair.org/PagesByModel...013683.pdf
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!
Terry
Posts: 4
Threads: 2
Joined: May 2011
Terry,
answers to your questions 1st yes i can read schematics, 2nd yes i think i know how to count the pins, and yes i have a voltmeter.
Posts: 7,323
Threads: 270
Joined: Dec 2009
City: Roslyn Pa
Ok, So to test the filament on the loctal tubes measure across pins 1 and 8 and the octals across pins 2 and 7. Should show a very low resistance if good.
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!
Terry
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