[R-390] OT: 30V regulator?

[John Kolb]

At 11:17 AM 9/17/2007, Barry wrote:
>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

Having to plug in the meter whenever I took it somewhere besides my bench
would be a real drag.  You might consider putting a plastic baggie around the
battery with just two small holes for the battery holder contacts, to prevent
damage from leaks.

Got my 30V battery at radio shack.

John