Hey guys, pretty noob question about biasing tube amps, I’ve never done this before, I figure I should make sure I’m understanding this right. So I bought a little bias probe off eBay that plugs into my multimeter. I tested it with my multimeter and it interrupts pin 3, so when it’s plugged into my multimeter it inserts my multimeter in series with pin 3 (plate). So if I understand this right I just set my multimeter to millivolts and boom, there’s my plate current draw, right? I could then just flip to voltage on my multimeter and measure plate voltage right? I tested it earlier and after letting the amp warm up a bit (it’s a Jet City JCA50h), it read -5mV (!). I turned up the bias control to bring it up to around 25mv which added a lot of volume, made it squishier feeling and also removed a lot of high end and fizz. I admit I didn’t like it as much, it lost some of that sharp attack that I like (and I guess I’ve gotten used to over the last few weeks). I compromised by turning it to 10ma, and just turning up Treble and Presence to compensate. My question is... does the above assumption about measuring current on pin 3 sound right? Do 6L6’s even work at 5mA or was I doing something horribly wrong? Given my preference for tight articulate modern metal tones, I knew I wasn’t going to be running them anywhere near 70% plate dissipation but 5mA to 10mA sounds laughably low. The plate voltage is around 500v I think, I forgot to write it down.