Don't freak out.
The high voltages are inside the box.
There's nothing to be affraid of arround the bias probes as you will measure there only milivolts.
275mV in triode or 290mV in ultra-linear modes.
The high voltages are inside the box.
There's nothing to be affraid of arround the bias probes as you will measure there only milivolts.
275mV in triode or 290mV in ultra-linear modes.