This circuit for a 16-channel infrared transmitter was found in the August 1984 issue of Radio Electronics magazine. The circuit is powered by a 9 V battery.
This circuit is from Motorola's Linear Interface ICs from 1993. The MC1723 is the equivalent of...
T This circuit produces an audible signal when someone touches the sensor, or even approaches. The...
We found this circuit in a 1968 Electronics World. The transistors are from the era and...