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Re: [Amps] Cal Lab

To: amps@contesting.com
Subject: Re: [Amps] Cal Lab
From: "Will Matney" <craxd1@verizon.net>
Reply-to: craxd1@verizon.net
Date: Mon, 24 Apr 2006 00:48:31 -0400
List-post: <mailto:amps@contesting.com>
All,

When I made the post, I intended and asked for everyone to contact me off the 
list as I figured some wouldn't like it. Dave couldn't reach me through his ISP 
to mine, and this mailer was the only way he could reach me. I think I answered 
3-4 questions which was posted on here rather than sent to me off the list, and 
the others that came in I sent them back private. The few I answered on here 
was needed to clarify what I said before everyone. Any after that was sent 
private. It was not my intent to continue the discussion here, if some would 
like to read my original e-mail. I will quote for the admin what I said, " If 
any are interested, please contact me off the list".

The rivetnut deal, was an important issue about 1 week back and nothing was 
said. The use of rivetnuts for homebrewing amps can make assembly much easier 
and was why it was originally posted.

Will


*********** REPLY SEPARATOR  ***********

On 4/23/06 at 6:48 PM k7fm wrote:

>When I see home built amplifiers, one of my pet peeves is seeing a nice
>amp 
>with 4 or 5 different types of meters.  I have a supply of old 50 ua 
>radiation meters and I make new scales and shunts to use them as
>voltmeters, 
>ammeters and power meters.  We do not just go out and buy factory meters. 
>Therefore, we need to know how to make shunts, meter faces.  Another 
>critical thing, if your amplifier is not going to look like a piece of
>crap, 
>is blind fasteners.
>
>I have been building amplifiers for 45 years and I learned quite a bit on 
>the blind nut discussion.
>
>Frankly, I expect the amplifier discussions to push the envelope a bit. 
>How 
>do you test the amplfier for possible parasitic oscillations?  Do you 
>blindly install a Rich Measures piece of nichrome, or do you use a network 
>analyzer to find out where the circuit might oscillate and attack the 
>problem with science.  Network analyzers, grid dip meters, blind
>fasteners, 
>meter calibration, protecting the silicon diode and power line glitches
>are 
>all part of amplifier building and maintaining.
>
>Otherwise, we can just buy an amp and send it back when it breaks.
>
>Was my cat joke objectionable?
>
>Colin   K7FM 
>
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>Amps mailing list
>Amps@contesting.com
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