[R-390] OT: 30V regulator?

Barry n4buq at knology.net
Mon Sep 17 14:17:34 EDT 2007


Not much on the list for a while so would like to ask an OT question.

I have an old Triplett 630-NA meter and would like to use the ohmmeter section.  It takes a 30V battery (which is still available) and a 1.5V D cell for ohm functions.  I was thinking of making a small 30V regulated powerr supply and house it inside the cabinet.  This is an older, kind of rough condition meter that I keep because my father gave it to me so modifying it doesn't bother me too much.

I was thinking of a 24VAC xfmr with a full-wave bridge, a cap, and possibly a 3-terminal regulator but didn't know if a 30V 3-terminal regulator is available.  Also, would like to make a 1.5V power supply for the D cell, but not sure if a 1 or 1.5 xfmr could be had as well as whether a 1.5V regulator is available.

Any thoughts?

Thanks,

Barry - N4BUQ


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