I have obtained several of these. They were being used as line
amplifiers at my job, but are now being replaced. I've contacted the
present owner of the Dynair name in search of a schematic, but
apparently they can't help me. I thought I'd post this request on
usenet before I have to take the trouble to trace out the circuit and
draw my own schematic.

These are transformer-coupled (UTC 0-11 input, A-22 output) and use
four Motorola 2N697 TO-5 transistors. They mount in a 2RU frame along
with a power supply (model PS-3015B or PS-3015C). I'd love to find
schematics for the power supplies, too.

I was originally planning to harvest the transformers and throw away
the rest, but I might keep them intact since they're apparently pretty
rare (at least I've never seen one before) and just might sound cool.

Thanks.

--Dave