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@esbesaya.com
KR DX Group
--------------------------------------------------
From: "mike stokes" <mike9v@gmail.com>
Sent: Tuesday, March 29, 2011 12:16 AM
To: "Amps" <amps@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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> Amps@contesting.com
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>
>
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