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 high current control circuit was found in a publication from the 1990s. The power transistor must...
This circuit monitors the voltage of a 110 V network using a small 3 W incandescent lamp and an...
We found this circuit in a 1986 documentation. It causes 40 LEDs to flash sequentially. The big...