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Hallicrafters S-120
#5

(05-16-2015, 02:50 PM)David Wrote:  Doing this without notes!!! C31A,B,C 47uf at 220-250 volts, R21 33ohms to 50ohms. R14 470k change to one watt or use 2 one half watt 1megs this is something I do with every radio using a 35C5 or 50C5. Consider adding a 50ohm to the filament string something I do most of the time. C31D 22uf 50 volt to 250 volt most of the time use 250 just what I have on hand most of the time. 12BE6 try different ones will make a difference on Band 4 forget the tube tester on this one. Simple long wire ant. 10-15 feet.   David 

What wattage rating should I use for that additional 50 ohm resistor on the filament string?

It's not how bad you mess up, it's how well you can recover.


Messages In This Thread
Hallicrafters S-120 - by Eric T - 05-04-2015, 11:49 AM
RE: Hallicrafters S-120 - by David - 05-14-2015, 05:37 PM
RE: Hallicrafters S-120 - by Eric T - 05-16-2015, 08:03 AM
RE: Hallicrafters S-120 - by David - 05-16-2015, 02:50 PM
RE: Hallicrafters S-120 - by Eric T - 06-03-2015, 03:16 PM
RE: Hallicrafters S-120 - by David - 06-03-2015, 07:05 PM
RE: Hallicrafters S-120 - by Eric T - 06-04-2015, 12:55 AM
RE: Hallicrafters S-120 - by Eric T - 06-04-2015, 06:33 PM
RE: Hallicrafters S-120 - by David - 06-04-2015, 07:13 PM
RE: Hallicrafters S-120 - by Eric T - 06-05-2015, 10:16 AM
RE: Hallicrafters S-120 - by David - 06-05-2015, 12:59 PM
RE: Hallicrafters S-120 - by Eric T - 06-07-2015, 06:08 PM
RE: Hallicrafters S-120 - by David - 06-07-2015, 07:34 PM
RE: Hallicrafters S-120 - by Eric T - 06-08-2015, 02:43 PM
RE: Hallicrafters S-120 - by David - 01-15-2021, 02:49 PM



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