This is the traditional voltage follower configuration with the 741 operational amplifier. The circuit is from 1976 documentation and the power supply must be symmetrical from 6 to 15 V.
The circuit that we will see below uses an element of the semiconductor family that is not yet...
This circuit with silicon transistors at the time was found in the Radio Electronics magazine of...
This low current circuit is suitable for powering the previous circuit and other strobe lamp...