On Thu, 24 Feb 2005 16:29:05 GMT, Bruce L. Bergman
vaguely proposed a theory
.......and in reply I say!:

remove ns from my header address to reply via email

I have to say here that any transformer will cause more trouble than
it saves. They are OK for a sprts meeting, with long long runs, high
power and low quality, and to keep wire costs down etc. But the
impedance, oscillation, and frequency response problems of a tranny
are huge, compared to transistors and good wire of sufficient size.

If you're going more than 50'-100' or so with the signal (like "out
to the shop") use a 70-volt amplifier system to do it, and drop it
back to 8-ohm at the far end with a speaker transformer. Otherwise
you get a distorted signal trying to push 8-ohm audio too far, from
the capacitive/inductive effects of the cable. That's why they have
to apply loading coils every ~6,000' on long telephone cables.

-- Bruce --