This 4-transistor amplifier can work from 4.5 or 6 V power supplies. We found it in a Mullard transistors manual from 1960. The transistors are from the time.
This circuit was found in old documentation. Transistors can be general purpose JFET types and the...
We found this circuit in an old documentation from the 70s. The sensor is an LDR that must be...
To turn on the configuration of CIR106E using a “’1" logic level, the circuit is given here. To...