This circuit is powered by a voltage of 4.5 V, being common in radios of the 60's. The circuit is from Mullard's transistors reference manual.
This circuit is from an American technical documentation from the 70s, but it can be easily...
This circuit converts a range of input voltages at frequencies from 800 Hz to 3.7 kHz. This is a...
This circuit has a configuration that is widely known and explored on our website. The SCR can be...