[Boatanchors] Dentron MLA-2500B

[Carl]

The manual is correct but the amp will not tune into some antennas.

Go back to original, test into a dummy load and go from there if needed. 
Usually a little more Load C is required.

Carl
KM1H

----- Original Message ----- 
From: "Jaime Gomez" <cwdx.hk1n at gmail.com>
To: <boatanchors at mailman.qth.net>
Sent: Friday, July 01, 2011 9:25 AM
Subject: [Boatanchors] Dentron MLA-2500B


>I am replacing the finals for an old MLA-2500B with 2 x 4CX400 as per the
> article in Communications Quarterly Summer 1996.
> The amp is working now as per the article, except in 160M.
> Checking the parts list in the Dentron Mnual I find that C8 and C42 are
> listed as 100 pF but the amp actually have 1000 pF for them.
> I wonder if the parts list is wrong or if somebody replaced them 
> previously.
> Also, I have one of the 3x100 pF that conforms C9 missing. I believe this 
> is
> why I do not have tank resonance in 160M.
> Any suggestions? Am I wrong?
>
> Appreciate any help,
>
> 73
>
> -- 
> Jim, HK1N
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