Does anyone have any idea where I can get some info on a Radiomatic Stereo II {2} tube amp. trying to troubleshoot a power supply problem I believe. All filter caps have been changed, diodes check ok, and replaced 1.5 k resistor that was way out. Can't find much on line possibly made by GE? Circa 1965 stereo PA amp supposedly. Was in a cabinet with a turntable like an early DJ setup. Thank You in advance
