[Amps] Drake L4 preventative maintenance

[Fernando EC1CT]

Hi Mike,

Take a look at this:

http://www.theheathkitshop.com/page7/page7.html

Their ps mods are great. Have my L7 PS rebuilt with their kit and it´s 
working very smooth since then. 73!

Fernando EC1CT // KD0IGJ
E-Mail: ec1ct at esbesaya.com
KR DX Group
--------------------------------------------------
From: "mike stokes" <mike9v at gmail.com>
Sent: Tuesday, March 29, 2011 12:16 AM
To: "Amps" <amps at contesting.com>
Subject: [Amps] Drake L4 preventative maintenance

> I bought a Drake L4 years ago. This a L4 that was supposedly converted to 
> a
> L4B.  Has been a good amp and has made a lot of QSOs.  A few years ago
> the filament xfmr developed a bad hum/vibration.  I replaced with one from
> Peter Dahl and all is good.
>
> No current problems but was wondering if I should rebuild the P/S.  I am
> pretty sure it has original caps, etc.
>
> Also any recommended mods that should be done.
>
> Thanks in advance.
>
> Mike
> KK9V
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