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Tony,A few years ago I had a National NC-109 with an open audio transformer.? I didn't have any audio transformers but I did have a 6.3 Volt filament transformer, I did some calculations and found

Update.? I got a cap installed.? This one is brand new from tubesandmore.com.? it does not fit.? I had to make it fit.? I used a cut off D shaft and a Millen Flex coupler.? I have not tested on

No it's not the pot. C

Hello everyone, I’m in the process of getting a SX-140 back on the air. If anyone has an audio output transformer (T4) that you would like to sell, I would really appreciate it. Thanks. ?Tony N5DIM

I'll take one. TNX wa3gin

I’ll take one. 73, Jim N9WW

OK, good luck with it. 73 Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of acceptance is not proof of correctness. https://wd0gof.com/bible-study/commentaries/

I have only one Masonite back panel for my PS 2000.? ?I dropped it off to a print shop and contracted them to reproduce these.? If anyone wants one, please let me know.? I have no idea what they

Thanks, Walt. Will go back and verify what I am measuring and it looks like this stage is working properly. Next on to the mixer xtals, etc.. Right now the radio is mute but have not started any

See red below Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of acceptance is not proof of correctness. https://wd0gof.com/bible-study/commentaries/ ________________________________

This question mainly for Walt. Finally starting on the first of two radios here and question the voltage reading for V6. The original manual only calls for 7 volts but in your instructions, Walt, you

I am looking for a Hallicrafters R274? parts radio, or individual parts, im looking for the entire tuning gear assembly, including the main dial showing the frequencies,,, let me know what you might

LOL, a early and a late HT-9 would be good but even better would be having coils and tuning units to put one of the two on the air. 73, Tom N5AMA

Lead was added to gasoline around 1922, not long after it's discovery, as an easily to add octane.? So any car built after the introduction of the Ford Model T would have used leaded gas.Regards,Jim

Thanks Mike, I couldn't remember the name of the tape. It's a bronze color and very impressive as an insulator. I was going to use it if the cap in the SR2K I'm restoring had a similar problem. 73

Sounds like a simple problem, like a bad drive control pot needing major cleaning or replacement.

Suggestion – if you can find a very little bit of Kapton tape. Kapton is rated 100's of kV/mm. I’ve used it in high power (10 kW and above) tube-type FM broadcast transmitters with great success.

I’ve have some very thin, thinner than bond paper high voltage insulation tape with one side sticky. I think it’s rated at 5kV. Might be worth a try. I can mail you a few inches if you decide to