[DIY] OT: Tube amp disaster

[Paul Maddox]

Tony,

>
> Is it possible to destroy a tube amp by running it at the wrong output
> impedance? I have just got an amp that was run with a 8 ohm speaker in
> its four ohm output socket for about a week. Then it started to smell
> bad and started to oscillate. When I turned it on, after connecting the
> output correctly, it then started to smoke. I haven't turned it on
> again.
>

Im no tube expert (eric you here still) but I beleive that incorrectly
matched
impedence on the output stage is about the worst thing you can do to a tube
amp.
Im almost SURE a remember reading that this will cause oscillations and
possibly
output transformer being melted.

Eric would be the man to get the diffinative answer from.

Paul