This circuit is from Mullard 1969 documentation. The circuit operates at a relatively high supply voltage and has a 10 Vpp output. The transistors are of the time, but admit equivalents.
The circuit shown in the figure is quite interesting in control and alarm applications. This...
This small preamp for low impedance microphones was found in a Popular Electronics from November 1968....
July 2017 - The new Mean Well ENC-360 360 W battery chargers suitable for motorcycle battery...