[Amps] doorknob cap suppliers ?

Robert Harmon k6uj at pacbell.net
Tue Mar 15 11:47:07 PDT 2011


I see your point.  I'll see if I can find higher voltage caps
that will fit O.K.
I have been looking at the Russian caps on ebay,
good prices.

thanks Bill,

Bob
K6UJ




On Mar 14, 2011, at 10:51 AM, Bill, W6WRT wrote:

> ORIGINAL MESSAGE:
> 
> On Sun, 13 Mar 2011 12:00:53 -0700, Robert Harmon <k6uj at pacbell.net>
> wrote:
> 
>> Yes that is what is in there, two 2000pf 6kv discs in parallel.
>> I'm going through and upgrading caps in the amp,
> 
> REPLY:
> 
> For what it's worth - IMO, 6kV is a little bit marginal. If you ever
> have an antenna fault while transmitting (broken wire, shorted coax,
> whatever) the voltage across the cap can easily exceed 6kV. As long as
> you're upgrading, why not put in a 12 or 15 kV cap? The cost is only a
> little more and the peace of mind is priceless.
> 
> I recommend the Russian doorknobs on eBay. Good stuff. 
> 
> 73, Bill W6WRT
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