• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

I’d have to sit down later and do some math. But why couldn’t you float the B- to a certain point and then use the B- to measure current like in a tube amp? Instead of trying to measure or read something on the B+? I’m asking, not saying you should.  Then maybe you could use 100uA meter.  Still need a series resistor on B+ to limit to say 100uA as a safety precaution. I’m just asking, as I’m not sure this would work? I’m happy to take feedback from those with more experience.