Joachim's Ham-Radio and Radio-Frequency Blog (A Solderful of Secrets) - from Longwave to Microwaves
Sunday, January 17, 2010
7493 ripple counter keying
Well, tiny idea about the keying I was writing about in an ealier posting.
There are two pins (2&3) either one enabling counting when grounded. This lead to the idea of having one wired up a Morse key (or keyer) with all the