Re: [Amps] Modifying Amp Supply LK500ZA

[R.Measures <r@somis.org>]

On Jan 18, 2005, at 7:08 AM, John King wrote:

> I have an LK 500ZA  with a pair of 3-500s.
>
> I would like to rebuild the final tank circuit to make
> it as a tank circuit should be.

John -- The main problems with the tank are: too-small 
conductor-diameters for the higher band inductors, failure to use NPØ 
or N750 doorknob cap Tune  & Load padders, and no forced air cooling of 
the bandswitch and inductors.  The last problem can be fixed with a 
small, brushless 12vdc fan powered by the either the relay PS or the 
fil.  I bought 5 and I have some extras left over if u need one.

> Has anyone re designed
> and rebuilt the LK 500ZA final tank circuit?
>
> In addition, has anyone removed the final tubes and
> replaced sockets and installed aone or more ceramic
> tubes in a LK500ZA? Reason for asking is that space
> for a proper tank circuit doesn't exist with the two
> 3-500s.
>
> In addition, I would like to put it in my motorhome
> and ceramic tubes would be more rugged.
>
> I would like the benefit of your ACTUAL experience
> with the LK 500ZA. Thanks and 73, John, K5PGW
>
>
>             
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Richard L. Measures, AG6K, 805.386.3734.  www.somis.org

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