geekmacdaddy
Well-known member
I built Poctop's C12 with Matador's power supply. The power supply pre-calibration is perfect. B+, Bias and Heater voltage perfect. When I plug the mic in, getting 120 B+, and the tube is lighting up, a bit. Ov in the heater's and Bias is about +57v. Any help is appreciated.
Thank you
Thank you