This symmetric 30 mA x 15 V power supply was found in the Ferranti transistor manual from 1974. Transistors are common types at the time.
This circuit allows the use of two triggers (inverters or NAND ports connected in this way) to...
This circuit was found in a 1992 publication. Its purpose is to time the activation of a doorbell...
A fine adjustment of the output voltage of a power source is achieved with this circuit, which...