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 protects power supply equipment against transients coming from the power line as well as...
Originally this circuit is from an English magazine, but I found it in Argentina's Radio Chassis...
This digital mixer uses CMOS integrated circuits. The circuit was published by us in a magazine...