... the tube I had in place when the resistor blew, I’d moved to another position as a slave tube ...
Why? It's guaranteed to fail again, sooner rather than later.
ARC ref 110 tube bias prob
All is going well but the last two tubes (master and slave) are showing weird readings.
The master shows no reading and reading 16.76 volts DC (not 0.65mVDC!) on my Fluke. The slave is showing a negative rating (-20mVDC).
The tubes are all good (swapped them over) but any tubes in that position do the same.
Anyone know what’s going on?