IF they are not SS, the welders are simple oscillators and use tubes not
rated for linear modes. Medical equipment uses high linearity tubes such as
versions of 8874, 3CX800A7, 8877, etc.
Lots of good parts for amps in both of them.
Carl
KM1H
----- Original Message -----
From: "Adrian Rees" <rees.a@btconnect.com>
To: <amps@contesting.com>
Sent: Thursday, June 28, 2007 5:18 AM
Subject: [Amps] Slightly OT....
> Hi all
> I know this may be slightly OT but never the less....
>
> I have a friend of mine who works in the Scrap Electronics business. He
> normally deals with, well junk. However, he has recently started getting
> in stock, to scrap, various Medical and Plastic Welding equiptment.
>
> Now I seem to remember that certain plsatic welders and medical kit use RF
> power Valves (Tubes) in them, and was wondering if anyone knows anything
> about this ? Are these scrap machines worth stripping ? If so which ones ?
>
> Cheers
>
> Adrian MW1LCR
> _______________________________________________
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> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
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