krimney
Super Member
I got a new tube from NOSvalves this weekend and went to bias the amp last night, AQ1003DT from ASL. My multimeter is an old analog unit from RS and is supposed to read from 125mV and up. From what I know about the amp I should be setting it a little over 250mV. However I can't seem to get much of a reading at all. The needle just barely moves. I do get some minor differences in the readings when I switch from one tube to another so I'm thinking it may be time to spring for a digital multimeter and keep the old one for checking impedance of speakers and checking outlets for 110V.
Do these #s sound right? If my unit does read down to 125mV then I should see the meter half way up the scale rather than just barely moving into the scale.
Ken
Do these #s sound right? If my unit does read down to 125mV then I should see the meter half way up the scale rather than just barely moving into the scale.
Ken