mm wrote:

Is it dangerous to the output transistors or something to run a radio
without speakers?

What if the volume control is kept at the minimum?

This wouldn't be a problem with a tube set iiuc, right?, but I'm not
so sure about transistors, if, say, the volume were accidentally
turned high. (No I didn't do that, but I was wondering how much
effort I should expend just so I can turn the set on and measure some
voltages.)

with tr amps its harmless, do what you like with the vol ctrl. With
most valve sets its harmless, but perhaps not all. Sometimes valve amps
were fitted with spark gaps on the output transformer HT side.


NT