[R-390] The adventure begins (and a capacitor question).

John Saeger [email protected]
Wed, 22 May 2002 10:06:00 -0700


More good ideas.  I looked at the problem cap list, and to tell the truth,
I'm not sure I understand why he wants to replace a mica capacitor with a
ceramic.  I thought micas were better.  Hmmm...

John

----- Original Message -----
From: "Jim Temple" <[email protected]>
To: "John Saeger" <[email protected]>
Sent: Tuesday, May 21, 2002 6:09 PM
Subject: Re: [R-390] The adventure begins (and a capacitor question).


> On Chuck Ripples web site is a file that lists "problem" caps in the
R-390A.
>
> The very first thing I would do would be to check the tightness of all the
> grounding points, above and below, all the modules.  This includes tube
> socket screws and under deck transformer mounting points that serve as
> grounding points.  Also, look carefully at all the solder joints and redo
> the ones that are not smooth and clean.
>
> Jim