Found in Unitrode documentation from the 1980s, this circuit makes use of PUTs, currently common components. The circuit must be powered with voltages around 15 V.
This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the...
If mounted with SMD components, this transmitter will be so small that it can be installed inside a...
This circuit generates some very interesting tone forms having been found in an American...