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Re: [Amps] Amp input board

To: "'Ulf Tjerneld'" <>, <>
Subject: Re: [Amps] Amp input board
From: "Gary Schafer" <>
Date: Sat, 29 Jan 2022 20:36:10 -0600
List-post: <>
Thanks Ulf,
I had forgotten about the WD7S boards. I have a few here that I bought some
years ago but could not find them in all my junk. Finally dug them out the
other day.
Gary  K4FMX


From: Ulf Tjerneld [] 
Sent: Friday, January 28, 2022 1:31 AM
To: Gary Schafer;
Subject: Sv: [Amps] Amp input board

Yes  Paul, WD7S did. But SK?  I don?t think anyone else in US has similar
today. If interested I can send you the construction document for Paul?s
TU-6B. It should be quite easy to replicate. There is a board sketch in the
docs. I don?t think there are any rights issues as all material were openly
downloadable on his site.
73?s ? Ulf ? SM0NOR


Skickades från E-post <>  för


Från: Gary  <> Schafer
Skickat: den 27 januari 2022 22:53
Ämne: [Amps] Amp input board


I am looking for a tuned input board with relays to switch circuits. Anyone

have anything they want to sell?

I have an amp with a pair of 3-500Z's that needs an input circuit.


A few years ago I thought that someone offered kits, board, parts etc. I

can't find anything on the web now.



Gary  K4FMX



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