This circuit has a sensitivity of 2uW. We found it in documentation from the 1980s. The integrated circuit is from that time. Equivalents can be tried.
This circuit can be used as an input shield for microcontrollers or other TTL circuits. The power...
This space mark demodulator for FSK signals was found in an American telecommunication...
This circuit can flash for up to 30 months using alkaline batteries as shown in the table next to the...