Pulse Scrambler (CB20547E)

This circuit assumes that a pulse produced by S1 has a constant duration determined by R1 and C1.

Audible TTL probe (CB10023E)
This circuit provides an audible signal when testing a TTL circuit. The circuit is from an old...
TDA7050 Low Power Stereo Amplifier (CB15398E)
The power of this small amplifier reaches 75 mW per channel depending on the voltage and the load...
Polarity Indicator (CB219E)
This circuit uses the 741 Operational Amplifier to drive two LEDs. The LEDs indicate the signal of...