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Re: [Amps] Ameritron AL-80A Receive muted - relay?

Subject: Re: [Amps] Ameritron AL-80A Receive muted - relay?
From: Roger <sub1@rogerhalstead.com>
Date: Sat, 26 Dec 2009 22:20:07 -0500
List-post: <amps@contesting.com">mailto:amps@contesting.com>

Carl wrote:
> I wouldnt use emery cloth as it is too abrasive even for coin silver 
> contacts.
>
> I use 2000 grit sand paper as used for wood finishing or autobody work. The 
> tool is thin blued spring steel and the paper is glued to both sides which 
> lasts quite awhile before replacing. Since the burnishing tools I had are 
> pretty worn out and often the wrong size I made up sevral different sizes 
> and shapes.
>
> For substantial pit removing such as vibrator points a more aggressive 440 
> to 1000 grit is used.
>   
440 is aggressive?  60 and 80 ARE aggressive! <:-)) 
The finest I have is 600 for wet sanding with paint work.

73

Roger (K8RI)
> For the newer micro thin flashed plating contacts a burnishing tool is as 
> rough as you want to get and maybe 1-3 cleanings is all you will get.
>
> Carl
> KM1H
>
>
>   
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