We found this configuration in a 1974 publication. Transistors can be replaced with equivalents such as 2N2222. The circuit has a dynamic range of 60 dB.
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...