I have a transistor amplifier and a tube amplifier (Oldchen EL34-B), both of which I want to use on my speakers (not at the same time, of course). To switch between these two amps I have an amp switcher (Dynavox AMP-S MKII).
When I switch the amplifier switch from tube amp to transistor amp, there is no load on the tube amp (since it is no longer connected to the speaker). I've heard that a tube amp can be damaged under no load. I have a few questions about this:
a) Can a tube amp be damaged even if there is no input signal to the tube amp?
b) Can a tube amp be damaged even if the volume control of the tube amp is set to zero?
(Maybe I can switch that way without having to turn off the tube amp right away.)
When I switch the amplifier switch from tube amp to transistor amp, there is no load on the tube amp (since it is no longer connected to the speaker). I've heard that a tube amp can be damaged under no load. I have a few questions about this:
a) Can a tube amp be damaged even if there is no input signal to the tube amp?
b) Can a tube amp be damaged even if the volume control of the tube amp is set to zero?
(Maybe I can switch that way without having to turn off the tube amp right away.)