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Linear Mode
Model 640 code 121 : all cathode to ground on my radio
Ron Ramirez
Silent Key
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Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#6

07-07-2007, 06:13 PM
Frederic,

Congratulations! I am sure that once you have reinstalled the correct push-pull interstage and output transformers and change the circuit back to push-pull, that you will have an excellent radio.

I do not currently own a 640 so I cannot comment on the oscillation problem you are experiencing on long wave.
--
Ron Ramirez
Ferdinand IN
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Messages In This Thread
640 grounded cathodes - by AI2V - 06-22-2007, 10:09 AM
[No subject] - by Ron Ramirez - 06-22-2007, 11:07 PM
[No subject] - by fabignoli - 06-23-2007, 12:45 PM
[No subject] - by fabignoli - 07-06-2007, 09:47 AM
[No subject] - by Ron Ramirez - 07-07-2007, 06:13 PM
[No subject] - by fabignoli - 07-09-2007, 05:01 AM
[No subject] - by fabignoli - 07-15-2007, 06:23 PM
[No subject] - by fabignoli - 08-11-2007, 02:16 PM



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  1. The PHILCO Phorum
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