[Amps] Alpha 76A "hums on 160" problem resolved

[Jim W7RY]

I too have had those .01 6KV Chinese caps short. It can take a while but 
they eventually will short. They have about a 50% failure rate with me. 
Its a matter of when they short... Not if they short. One was in a 
TL-922 with 3200 volts on it.

Mouser has .0047 (4700pf) 6KV Vishay/Sprague caps for a couple of bucks 
each.

Good luck with thoes
73
Jim W7RY



On 10/19/2013 1:06 AM, Jim Barber wrote:
> Replaced the two .002uF caps at the "cold" end of the larger plate 
> choke with two .01uf 6KV blue Chinese caps in parallel. (It's what I 
> had, don't tell Carl...)
>
> . Replaced the two .002uF caps at the "cold" end of the smaller 15uh 
> plate choke with two .01uf 6KV blue Chinese caps in parallel, as above.