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.
This is the receiver circuit for the transmitter of the previous circuit using an integrated...
This circuit is from an old American documentation using LEDs in the rectification. The circuit...
We found this small audio amplifier in the November 1999 issue of Electronics Now magazine. The...