Hi everyone,
I'm very frustrated with this build. We have followed the layout to the tee going over every connection. Did a nice clean job with the heater wiring. Used the original a10 and a24 transformers and allied power transformer. All top notch complements. RCA valves. This beast will not allow for peak reduction above 60 without going into a feedback loop and becoming unstable. We narrowed it down to something with v3 and v4. Voltages measure correct. Even just touching the meter to the unit stabilizes it. The insertion of a ceramic cap also removes the oscillations. I would prefer to get to the heart of the problem first before trying modifications. I know others have experienced some similar issues however nothing I've read offers is pointing me in the right direction. Please help.
I'm very frustrated with this build. We have followed the layout to the tee going over every connection. Did a nice clean job with the heater wiring. Used the original a10 and a24 transformers and allied power transformer. All top notch complements. RCA valves. This beast will not allow for peak reduction above 60 without going into a feedback loop and becoming unstable. We narrowed it down to something with v3 and v4. Voltages measure correct. Even just touching the meter to the unit stabilizes it. The insertion of a ceramic cap also removes the oscillations. I would prefer to get to the heart of the problem first before trying modifications. I know others have experienced some similar issues however nothing I've read offers is pointing me in the right direction. Please help.