02-18-2021, 12:51 PM
I use an old Heathkit IT-1 circa 1955. http://www.w6ze.org/Heathkit/Heathkit_018_IT1.pdf
It does isolate and is adjustable but only down to about 80v and being from the pre polarize
plug era it doesn't like them.
Easily handles any ac/dc set and is rated @ abt 200w with a break every now and then. Most
of the time with AC/DC set I'm just careful to make sure that the neutral side is at b- and couple
signals thru loops, nothing with a chassis connection. Sometimes I'll get a set with a problem
with hum modulation that's where it comes in really handy.
It does isolate and is adjustable but only down to about 80v and being from the pre polarize
plug era it doesn't like them.
Easily handles any ac/dc set and is rated @ abt 200w with a break every now and then. Most
of the time with AC/DC set I'm just careful to make sure that the neutral side is at b- and couple
signals thru loops, nothing with a chassis connection. Sometimes I'll get a set with a problem
with hum modulation that's where it comes in really handy.
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 it!
Terry
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
