[GreenKeys] A fun little project.

Jeffrey Angus jdangus at att.net
Mon Aug 24 09:29:13 EDT 2020


On 8/24/20 7:21 AM, Paul Birkel wrote:
> Jeff:  Please educate the rest of us by sharing your design with
> the GK crowd :->.   Thank you.
Sean has built and tested the bi-polar converter.
The Autostart is based on K0TTY's design.
Both have been tested with LTSpice to make sure they do what
they're supposed to do.

Have the RSGB teleprinter book.
Their method of dealing with the bi-polar signals was to gut the
machine using only 1/2 of the contacts and moving the selector
magnet to the space position.


-- 
"I am a river to my people."
Jeff-1.0
WA6FWI
www.foxsmercantile.com

-------------- next part --------------
A non-text attachment was scrubbed...
Name: Polar Relay.png
Type: image/png
Size: 40981 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20200824/5a2f7d0f/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Polar Relay Auto Start.png
Type: image/png
Size: 23738 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20200824/5a2f7d0f/attachment-0001.png>


More information about the GreenKeys mailing list