04-05-2019, 09:52 PM
Not sure abt how all the math works out but my recollection is that the 5R4 is able to rectify much higher voltage (1800vac) but the max current is abt 150ma. Swapped out a pair of 5U4's w/5R4's in a transmitter I had and there was some drop in the hv by comparison. Maybe 50v or so. I wasn't suggesting that the 5R4 would be a suitable replacement for the 84 I only mentioned it to illustrate that that some have a higher voltage drop than others.
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
