10-04-2017, 12:02 PM
Don't be fooled by the .01 across the ac line thinking that it will bypass all of the noise on the ac line. It helps some but a lot can get by it. I used to think that a set w/a power transformer would block rfi and be impervious to pass line noise because of the inductance in the primary winding. I was chatting w/Mike about this issues and he brought up the fact that do to the close proximity of the pri to the sec winding there is some capacitance coupling between the winding and that the rfi can pass though.
As a practical matter I find that sets that have series strung heaters are more susceptible to rfi than a set w/a pt.
As a practical matter I find that sets that have series strung heaters are more susceptible to rfi than a set w/a pt.
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
