This circuit was found in an American magazine 73 for radio amateurs of the 80s. It is an automatic transmission circuit for telegraphy. The circuit is TTL.
This TTL divider divide by 0 to 9 the frequency of a signal applied to its input. Maximum...
This circuit was found in a 1980s Intersil documentation. The integrated circuit used is not...
We found this circuit in the January 1992 issue of Radio Electronics magazine. The circuit...