[R-390] OT: 30V regulator?

[Gord Hayward]

Zeners are good.  For 48-52 voltsYou could use a 48 v zener and bias its 
'ground'
point with an adjustable regulator.  For ~1.5 v I use a couple of 1N400x 
in series
- not bang on but close (horseshoes, hand grenades and drive in movies ;-)

I've built regulators with an op amp and a big pass transistor.  The 
trick is capacitors
in critical places, the transistor base and a BIG one on the output to 
keep it stable.

Cheers, Gord VE3EOS

-- 

Gordon L. Hayward, Ph.D., P.Eng.,
Associate Professor, Biological Engineering,
School of Engineering, University of Guelph,
Guelph, Ontaro, N1G 2W1.