Zenith 25MC33 HV Trouble

[old_coot88]

Originally Posted by Electronic M

IGood diagnostic methods: disconnect the top cap from the HV rectifier and see if you can draw an arc 1/4"+ from the top cap lead or fly doughnut with an ungrounded screwdriver...

If yes your fly and its drive circuits are fine.

The arc will be substantially longer than a quarter-inch with a color set.

It's well to heed the old admonition: never, ever leave a vintage TV (especially color) running unattended, even for a moment.