Phono cathode follower weirdness
Posted: Mon Nov 02, 2015 7:46 pm
I'm working on the phono amp now (I got lots of hum) and the cathode follower I'm using is a 6N3P. When I check the voltage on top of the 100K with the other 2 tubes pulled, it varies a little, 150-151. When I check the grid, the voltage starts at 130, and goes down to 60 volts. It will do it over and over again. I guess my multimeter is loading the grid down, but I though the 1M would be able to keep it up. I tried a 470K, but it still goes down. My multimeter is a Fluke 87.