This unijunction transistor trigger pulse generator circuit was found in the March 1973 issue of Radio Electronics magazine. Typical values for Re CT are 100k and 220 nF.
This circuit uses a 555 (according to the diagram) to generate 50 ms tone bursts at a frequency of 1.5...
The input frequency of a signal applied to this circuit will be divided by one to 9999 in this...
This circuit is the conventional use of the 7805 as a constant current source up to 1 A. The...