[Collins] 30S-1 Repair

[k2qde at optonline.net]

Dave,

These were available not too long ago from SSN. Guess they ran out.

Stu


----- Original Message -----
From: David Knepper <cra at floodcity.net>
Date: Thursday, July 8, 2004 10:00 pm
Subject: [Collins] 30S-1 Repair

> I have been experiencing the high voltage dropping out on one of 
> the 30S-1's
> at the Collins Radio Center.  Finally found the problem and wanted 
> to pass
> it on.
> 
> There is a a two section electroyltic can type capacitor (C211A 
> and C211B)
> mounted on the subchassis toward the front right.  This capacitor 
> serves to
> provide a "boost" to the voltage feeding K101 and K203 the plate 
> currentrelay.
> 
> If your high voltage drops out or fails to hold in, then, the 
> culprit, in my
> case was this two section capacitor.  Finding a direct replacement 
> can be
> difficult so you may have to wire in a couple of 300 mfd/25 volt 
> caps across
> the terminals.
> 
> K203 energizes very nicely after changing out this aluminum can
> electroylytic.
> 
> 
> Dave, W3ST
> Publisher of the Collins Journal
> Secretary to the Collins Radio Association
> www.collinsra.com
> 
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