Jim Vincent wrote:

This might be a solution for Udo, the original poster. I suggest he try
the Datel converter (UHE-15/2000-Q12) mentioned by Tom Seim, as it is
cheap, very small, totally enclosed, wide temperature range, and with
excellent specifications for regulation, ripple, and overload/overvoltage
protection. I can't guarantee it will work since I don't know of anyone
that's tried it in a glider, but it's the one I'd get if I had Udo's
problem. Of course, the converter would only be used to power the radio,
not the other instruments.


I'm a little concerned about hitting the system with 15V. Be sure to check
the voltage operating ranges of all your gear. If you find you're
constrained to a lower voltage, you then have two options. First, get the 15
V model and use the trim function to bring it down by 5% to 14.25 V or
secondly use a 12 V model trimmed up to by 5% to 12.6 V. The trim is easily
configured using resistors or potentiometers.

Yes, 14.25 should be fine, since a fully charged 14 volt battery is
almost 15 volts.


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Eric Greenwell
Washington State
USA