I purchased a new Drake L-4B in 1975 and put it into storage in 1990. In
2005 I got back on the HF bands and wanted to use the L-4B. Don't take the
chance on old electrolytics. I rebuilt the HV capacitor and diode strings
by following the instructions given in this link
http://www.wb4hfn.com/DRAKE/DrakeArticles/TechTips/ElectrolyticRelacements.htm
John, N9JG
= = = = = = Original message = = = = = =
Date: Fri, 12 Oct 2007 15:23:29 -0700
From: Clark Savage Turner <csturner@kcbx.net>
Subject: [TenTec] bringing up an old amp
To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Message-ID: <3f6626c28fd1dc11efd164d1fa38bb26@kcbx.net>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Anyone have a quick link or a reference to the right way to bring up an
old amp power supply? I have a variac for both 120 and 220, and I got
an old friend's Drake L4B, not used for at least 10 years (maybe more)
and nothing was apparently wrong when it was stored (he was looking for
chimney's of some sort). I'd like to bring the power supply up so that
the electrolytic caps will work once again. I'd love to find basic,
detailed instructions, its something I've never attempted before.
Thought I'd ask here, most trusted list I know :-)
[snip]
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