From: UltraJohn

Hummmmm
If you take a ceap 12v to 110 ac power inverter from Radio Shack and tack a
24-30 volt bell transformer with a rectifier and filter on the output you
could make your own 12v to 24 volt dc converter for about $20-$30 dollars.
Ask Jim Weir if he can come up with a project ;-)
John



Richard Riley wrote:

I wouldn't think you'd need to filter it. or rectify it. I bet the heater would
be happy with AC.

As a matter of fact I have seen pitot tubes with 115 VAC heaters.

Dan, U.S. Air Force, retired