Voltage regulator for half input voltage

[jackinnj]

Thanks for that, I have already seen this. With two 4.7uF capacitor to GND and VCC should set it out of the unstable region.

A resistor of a few Ohms, in series with the cap will help with stability.

 

[Rick PA Stadel]

. . two 4.7uF capacitor to GND and VCC should set it out of the unstable region.

Yes. But keep typical electrolytic tolerances in mind -- worst-case difference can be 40% (or more), and still be within tolerances. Not a problem operating, but may impose unnecessary strain on the '2426 at each power cycle. As long as both capacitors are from the same batch it'll probably be fine. But as a former repair tech, I wouldn't mind a note on the schematic to 'replace both at the same time'.

And 'Thanks, jackinnj' -- both the effort and the result. 🙂

Cheers