05-07-2017, 09:49 PM
>while on shortwave i hear a tiny humm,, investigated.......
i have a polarized two prong cord update.
with my VOM, from radio chassis to the third prong of my source outlet i have 54vac
What you are seeing is some ac leakage or coupling from the .01 line bypass caps. This is normal. If you have a different earth gnd like a water pipe or hot water baseboard heat element may be a little better than the gnd on the outlet.
Grounding the chassis will eliminate this voltage.
i have a polarized two prong cord update.
with my VOM, from radio chassis to the third prong of my source outlet i have 54vac
What you are seeing is some ac leakage or coupling from the .01 line bypass caps. This is normal. If you have a different earth gnd like a water pipe or hot water baseboard heat element may be a little better than the gnd on the outlet.
Grounding the chassis will eliminate this voltage.
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