One step away from a bug in that a string of dahs not just one dah comes out when you hit and hold the dah paddle. There is a circuit in "Solid State Design for the Radio Amateur" page 178 that I think does this using three NE555 'timer' ICs, VERY simple, with a pot controlling speed. The Dah, Dit and Spacing times can also be adjusted to suit the user's taste. The authors were discussing applications of the NE555, not keyers as such. CMOS ICs would keep the power draw low. 73, Geoff. GM4ESD
----- Original Message ----- From: "EricJ" <[EMAIL PROTECTED]> To: "'Geoffrey Mackenzie-Kennedy'" <[EMAIL PROTECTED]> Sent: Saturday, February 19, 2005 8:50 PM Subject: RE: [Elecraft] Ultimatic Keying. > > Here's what I want. A keyer that generates dits when I push one paddle. It > generates dahs when I push the other paddle. When I push the dits paddle > while making dahs, I don't want it to do ANYTHING--I'm busy making dahs. > Likewise, when I push the dahs paddle when making dits, I want it to keep > making dits. Not dahs, not dah-dits. Dits for dits and dahs for dahs. Why > has that been so much to ask of a keyer? > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
