[jeyurkon]

I'm torn between rewinding the coil and repairing it. It has 16 turns and is bifilar wound. Should be easy enough to rewind, but just as easy to fix. Both ends are open. One end I can just reattach to the terminal, the other end I would need to splice.

I had to soak it in lacquer thinner. That didn't dissolve the alkyd coating but softened it enough to scrape off.

Any suggestions as to which route I should take?

There are only two components that could have caused the failure. Other than someone twisting the form while trying to adjust it.

One would be the tube which tested o.k. At least not shorted. The other is a 0.68 pF 500V axial ceramic. It's too small a value for me to test, but the leakage at 500V is less than 100 nA. There's a 0.005uF disc ceramic on the secondary that has 1.2uA leakage at 500V. That didn't cause any problems though. I'll replace it anyhow since it's really ugly looking.

The color code on the 0.68pF ceramic is Blue-Gray-Silver-Nothing. I'm not familiar with this coding. Anyone have a chart for this type of ceramic cap?

John