A while back, I replaced the 5V zener reference with a 317 regulator. It was working very nice with excellent sonic results.
Today I tried a new reg I am working on based on TPS7A4501
The problem is that the turntable seems to be in an accelerate-break-accelerate-break loop. I see no problem with the voltages.
Any idea what might be going on? The voltage is 5.08V