This circuit responds to frequencies from 100 Hz to 3 MHz. We find it in a 90s Radio Electronics. Transistors are general purpose types.
This mouse circuit was found in the January 1997 issue of Electronics Now magazine. It uses a PIC...
Incandescent lamps of up to a few amps can be placed to flash with this circuit. The frequency depends...
We found this circuit in the 1994 Linear Applications Handbook by National Semiconductor. The...