This circuit for a simple alarm system was suggested in an article in Electronics Now magazine. The circuit has a small power stage that can be changed.
This circuit is from a 1968 Electronic Design. The characteristics of the output transformer are not...
Suggested by an Electronics Now magazine from April 1994, these circuits can be used as output...
The third version for the 4098 is shown here (the others are CIR17E and CIR138E). It is a...