Using the 4001 integrated circuit, this latching relay can employ any general-purpose transistor. The power supply is according to the relay with voltage up to 12 V.
June 2017 - The new power projection LEDs OSTAR projection from OSRAM can now be obtained from...
Found in a 1960s documentation, this circuit uses a transistor to drive a relay as well as a set...
This circuit can be used as an input shield for microcontrollers or other TTL circuits. The power...