Re: [Repeater-Builder] 24 vdc to 12vdc

[Steve Kometz]

You can "cheat" and run off one of the 12 v batteries.
  But the better way is to use something like the Astron 2412 DC to DC 
converters.
  I used several of them in the past running 12 v radios in 24 v helicopters.
  Like a lot of Astron stuff, they worked very well.
  I think the 9 amp version starts arround 60 bucks.