This simple digital circuit tester can work with TTL technology when powered by 5 V and with CMOS when powered by voltages from 3 to 15 V. The circuit provides LED indications and uses current ICs.
The previous circuit (CB5050E) triggers when the temperature exceeds the limit set on the...
Found in a 1960s Electronic Design, this circuit provides a signal from the sensing of an analog...
We found this sensitive high input impedance voltage amplifier in the November 1970 Radio...