Found in a 90s American documentation, this circuit mimics the Enterprise warning signal from the movie Star Trek. The signal must be applied to an amplifier.
This circuit was obtained from the Texas Instruments component datasheet which can supply currents of...
The circuit shown is a white noise generator using a zener diode as a source of noise. The...
We found this touch switch in a 1992 Electronics Handbook. The circuit can be assembled with 6 or...