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Philco 41-280
Radioroslyn
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Posts: 7,303
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#9

01-05-2012, 11:28 PM
Ok The problem is you have no grid bias. Pin 4 should have about -10vdc on it. At the junction of the two 1meg resistors 53 and 54 what voltage do you have there? Is the negative side of 62 ground to the chassis?
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!

Terry
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Messages In This Thread
Philco 41-280 - by OldJack1969 - 01-03-2012, 07:08 PM
Re: Philco 41-280 - by 7estatdef - 01-03-2012, 08:52 PM
Re: Philco 41-280 - by OldJack1969 - 01-04-2012, 06:55 PM
Re: Philco 41-280 - by 7estatdef - 01-04-2012, 11:49 PM
Re: Philco 41-280 - by OldJack1969 - 01-05-2012, 12:00 AM
Re: Philco 41-280 - by OldJack1969 - 01-05-2012, 01:09 AM
Re: Philco 41-280 - by 7estatdef - 01-05-2012, 07:28 PM
Re: Philco 41-280 - by OldJack1969 - 01-05-2012, 08:25 PM
Re: Philco 41-280 - by 7estatdef - 01-05-2012, 11:28 PM
Re: Philco 41-280 - by OldJack1969 - 01-06-2012, 12:05 AM
Re: Philco 41-280 - by 7estatdef - 01-06-2012, 08:47 AM
Re: Philco 41-280 - by OldJack1969 - 01-06-2012, 01:35 PM
Re: Philco 41-280 - by 7estatdef - 01-06-2012, 05:42 PM
Re: Philco 41-280 - by OldJack1969 - 01-08-2012, 12:43 AM
Re: Philco 41-280 - by Phlogiston - 01-08-2012, 12:56 AM
Re: Philco 41-280 - by OldJack1969 - 01-08-2012, 01:10 AM
Re: Philco 41-280 - by 7estatdef - 01-08-2012, 03:30 PM
Re: Philco 41-280 - by OldJack1969 - 01-08-2012, 03:45 PM
Re: Philco 41-280 - by gary rabbitt - 01-23-2012, 08:38 PM
Re: Philco 41-280 - by OldJack1969 - 01-23-2012, 09:29 PM
Re: Philco 41-280 - by gary rabbitt - 01-24-2012, 04:58 PM
Re: Philco 41-280 - by OldJack1969 - 01-24-2012, 05:10 PM
Re: Philco 41-280 - by 7estatdef - 01-24-2012, 06:17 PM
Re: Philco 41-280 - by OldJack1969 - 01-24-2012, 06:50 PM
Re: Philco 41-280 - by 7estatdef - 01-24-2012, 06:56 PM
Re: Philco 41-280 - by OldJack1969 - 01-24-2012, 07:15 PM



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