This circuit was obtained from the July 1970 issue of Radio Electronics magazine. Zeners are power types that can provide a good current to the circuit. Selection is made by rotary switch.
Using neon lamps, this regulator was found in a1969’s documentation. The lamps are types available...
In the figure we have the power supply for the 8 W amplifier in the previous circuit. The circuit...
We found this circuit in the April 1988 issue of Radio Electronics magazine. The circuit can be...