Hi,
The output transformers seem to be Acrosound, very good transformers.
Try looking for Williamson amplifiers schemes, depending on the valves
used there could be a similar scheme.
Do you sell one of these chassis? Also without tubes.



Il 01/11/2018 07:43, ha scritto:
Back in the 1960s I was given several heavy tube amplifier chassis. All
of them worked after replacing a few tubes. After all these years, I
still have them. They were very well made, The transformers were not
shaped like most, but were in square cans with rounded corners.

Another unusual thing, was the three part filter capacitors were plug
in, with an octal base (same as an octal tube). Back then, I had a
little hum so I found a store that had identical replacements.

The tubes were all octal based. Four 6L6 outputs, Two 5U4 recifiers, and
at least 4 more octal tubes. I believe at least one was a 6SN7
(something like that). I dont have them handy to look at right now....

Anyhow, they had awesome sound and were loud. The audio output
transformers were huge.

However, there was no brand name or identification of any sort on them.

50 years later I am still trying to ID them...

I think they were from jukeboxes. But that is just a guess....

I have tried to google different words but not found any matching
pictures. I did note that the Rock-Ola chassis all seem to have those
square transformers though. My guess is that they were made in the late
1940s or 1950s.

Does anyone know of any website that has photos of antique jukebox
chassis, or another means to ID them?