This circuit produces pulses of 90 V at intervals that can reach 5 minutes. The circuit is from a 1969s Electronic Design.
This 600-ohm output impedance circuit was found in a Radio Electronics from October 1963. The...
Used with infrared remotes at the time, this circuit was found in a 1991 RE Experimenter Handbook....
The circuit presented was obtained in a technical documentation from National Instruments. The...