Keith G wrote:

OK, exactly why don't trannies (on valve amps) like it being run without a
load?

Because with no load on the secondary, the primary of the transformer just
behaves like a huge choke.


It's not like they are going to burst open, is it??

The current swing can cause huge 'back emfs' that can damage both output valves
and the transformer itself.


Also does quick 'hot-swapping' speakers while an amp's hurt it any? (Oi dun
a lot o' thaat in tha parrst.... ;-)

If there's any significant signal, the damage can occur.


Graham