Using an integrated circuit from the time, this circuit was found in Radio Electronics from the 90s. The ZNA234E is an unusual component today.
White noise applied to an audio amplifier can be used as a relaxant, since it resembles the noise...
This low current circuit is suitable for powering the previous circuit and other strobe lamp...
The maximum current of this circuit is 1 A. The circuit is from Motorola Linear Interface ICs from...