This circuit consists of an inverter powered by only 4.5 V. The circuit is from a 1967 Mullard documentation. No information was provided on the transformer winding. Capacitors can be 1.5 nF x 3 kV.
This ultra-low power metronome was found in a 1991 documentation. The output transistor is general...
This circuit is based on an operational amplifier that must be powered by a symmetrical source. The...
The Texas TL783 integrated circuit is a three-terminal high voltage regulator with a wide range of...