A Mechanical Memory Contest Keyer from 1970

 Looking at the Instructograph picture yesterday reminded me of this mechanical memory keyer by K2UBC.

  Similar to the Instructograph with a switch doing the keying but instead of moving the tape a stylus is moved. in a channel. Want faster/slower code?: swipe faster/slower.

It's from page 40 of the 1973 Ham Notebook published by Ham Radio magazine:

https://worldradiohistory.com/Archive-DX/Ham%20Radio/Ham-Notebook-from-Ham-Radio-1973.pdf

It was also featured in the April 1970 issue of Ham Radio on page 79:

https://worldradiohistory.com/Archive-DX/Ham%20Radio/70s/Ham-Radio-197004.pdf

Of course both are available from the wonderful worldradiohistory site.

If you turn the picture upside down and magnify

you can see the messages:

WNY BK
5NN WNY
K2UBC
QSL DE

I gotta try this !  :)  People are so darn clever.

Best Regards,
Chuck Olson, WB9KZY
http://wb9kzy.com/ham.htm