This percussion circuit was found in an Electronics World of 1968. The transistor may be general purpose and the power supplied at 12 V. The signal must be applied to an amplifier.
Found in American documentation from the 90s, this circuit is ideal for wearables and can be...
This conventional LED effects circuit uses integrated CMOS. Today we can achieve the same effects...
This small MW transmitter emits its signals at a distance of a few tens of meters, depending on the...