[GreenKeys] A fun little project.

[Paul Heller]

Well done Jeff! You know your stuff. Thanks for contributing to our group. 

Paul
W2TTY

> On Jul 9, 2020, at 9:31 PM, Jeffrey Angus <jdangus at att.net> wrote:
> 
> Henning was talking to Sean in England about British teleprinters
> using +/- 20 mA bipolar keying rather that the on/keying used
> everywhere else. He told Sean to get in touch with me. So we
> discussed the problem. I came up with a simple solid state
> bi-polar keyer. It was a fun project. Sean ordered PC boards
> based on my design and filled them with parts. It works.
> 
> -- 
> "I am a river to my people."
> Jeff-1.0
> WA6FWI
> www.foxsmercantile.com
> 
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