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Re: [Amps] Converting a 76A to a pair of 3CX800's

To: Carl <km1h@jeremy.mv.com>
Subject: Re: [Amps] Converting a 76A to a pair of 3CX800's
From: Roger <sub1@rogerhalstead.com>
Date: Sun, 07 Feb 2010 16:57:00 -0500
List-post: <amps@contesting.com">mailto:amps@contesting.com>

Carl wrote:
>
> <snip>
> Buy the 470V rated caps (thats whats claimed and marked on them) from 
> Ameritron to give you some headroom.
That'd give me a bit over a 100 volts head room without trying to 
shoehorn in another cap or two.
> You could also drop the input AC with a fat bucking transformer as 
> long as the filaments stay within ratings.
>
If I put the 3CX800's in I'd like to take advantage of the extra 
capability and the higher voltage would keep the q about the same 
although dropping it a 100 volts should make no noticeable difference.

I don't think I could come up with a legal limit with overhead to spare, 
any cheaper. The most difficult part would be to add more ventilation 
holes to match up with the new rubber stacks and make then look like 
they were part of the original setup. Not only do they have to align and 
look neat, but to do so with out chipping the original paint might be a 
chore. Although the original holes *might* provide sufficient air flow 
there is still the problem with alignment.

As I have mentioned before, when it comes to building I want it done 
right and to look good which is why it takes me so long to build anything.

73

Roger (K8RI)
> Carl
> KM1H
>
>
>
>
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