Operating in class AB1, this high-fidelity amplifier was found in the 1961 RCA tube manual. The circuit has high input impedance and good gain.
This multi-output power supply was found in an article in Radio Electronics magazine in November 1985....
This circuit was found in old English documentation. The sensor is a 1M NTC. The circuit has...
This simple timer causes an LED to blink after an interval of the order of 7 minutes which is the...