AL G. wrote:
WHY do these continously wipe out?
Any one KNOW or can offer prevention measure?
Resistive load, current clamp--what?

Almost certainly a design problem. Heath was not exactly known to use
the highest quality parts in the first place. I suspect that it's a matter
of insulation breakdown on the high voltage winding, so that a PTO
thermistor in series with the primary to reduce inrush current won't
help much.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."