I have a weird pair of amplifiers (?) visiting my house. I thought I knew what I was getting myself into... but I don't!
DSC_6928 (2) by
Mark Hardy, on Flickr
I was thinking PP 6L6, and someone had (apparently) added an RCA jack input and a pair of 5-way binding posts for output. They come to life just fine, but pass extremely little signal.
Then there's the tube complement. 2 5U4, 2 6L6 and
one 6J5(?!).
I am not finding much.
One tantalizing thread and one old auction listing make it fairly evident that these used field coil drivers, which
might explain the issue(?).
https://www.antiqueradios.com/forums...?f=13&t=220408
So, one 5U4 for HV and one for a FC supply, maybe?
And then there's that 6J5. One triode, and
two 6L6s? I mean... that won't fly for a PP amplifier, and it's hard for me to conceive that this is a single-ended, parallel 6L6 amp!?!
It's not just a regulated P/S, is it?!?
Any of youse guyses know
anything about this (these)?
Anybody got a schematic?
Man, I feel so dumb...
