Hey Pete,
Just explain them what's a cold solder joint, and how it looks like.
To much plasterers and plumbers at work in electronic gear build with
discrete elements........hi hi.
73's jos on4kj
----- Original Message -----
From: "Pete Smith" <n4zr@contesting.com>
To: "R.Measures" <r@somis.org>; <ka1xo@juno.com>; <zl2aaa@paradise.net.nz>
Cc: "AMPS" <amps@contesting.com>
Sent: Wednesday, November 05, 2003 2:15 PM
Subject: Re: [Amps] SB220
> At 04:57 AM 11/5/03 -0800, R.Measures wrote:
> >*** "This ship is unsinkable". "This amplifier is unconditionally
> >stable".
> >-- Wait 'till Pete installs a new pair of tubes.
>
>
> Been there, done that, NOS Eimacs. No change. I agree with Rich that
> unconditionally stable is an overstatement -- I probably should have said
> "I've never made it oscillate, and I have tried."
>
> I do think that initial build quality probably has a lot to do with
> people's experience with these amps -- a couple of cold solder joints in
> the wrong places could make a big difference.
>
>
> 73, Pete N4ZR
> The World HF Contest Station Database was updated October 29.
> 2469 stations are listed -- 29 new and over 100 updated.
> Are you current? www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
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