Or look at Xantrex solar charge controllers.. they will take anything up to around 80v in and give you 12,24, or 48 out.. your choice.. stick a small 12v gel cell on the output, or some filter caps, and get up to 40 amps for a little over $100, though I have found they have clean enough output without anything extra for most situations
_____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Steve Kometz Sent: Monday, March 24, 2008 1:44 PM To: [email protected] Subject: Re: [Repeater-Builder] 24 vdc to 12vdc 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.

