Found in a 1969s American documentation, this circuit uses transistors from that time. The configuration can be adapted to use modern equivalent components.
This long interval timer was found in the September 1976 issue of Radio Electronics magazine. The...
We find this circuit in a documentation for engineers from 1971. The circuit generates rectangular and...
The output current of this converter from positive to negative -5 V is 1 A. The circuit is from...