RT-395A transponder

[Steve]

My 28V transponder is being very slow to warm up lately and I can get a good
deal on another RT-395A but the guys says it is 14V. What would it take to
make this one work on my system. Thanks
Steve

[Aaron Coolidge]

Steve > wrote:
: My 28V transponder is being very slow to warm up lately and I can get a good
: deal on another RT-395A but the guys says it is 14V. What would it take to
: make this one work on my system. Thanks
: Steve

Your RT-395A transponder might be a 14V unit with a dropping resistor inline,
in the airplane's wiring to the transponder (don't laugh! They actually did
this!). You might want to remove it from your dashboard and see if it has
a voltage rating listed on it. Otherwise, call Airwich Avionics, they know
Cessna radios.

--
Aaron Coolidge (N9376J)

[mikem]

On Tue, 12 Aug 2003 22:46:00 GMT, "Steve" > wrote:

>My 28V transponder is being very slow to warm up lately and I can get a good
>deal on another RT-395A but the guys says it is 14V. What would it take to
>make this one work on my system. Thanks
>Steve

There is only one transponder which works on 14V. In 28V
installations, a big dropping resistor is mounted on the rear of the
tray. If you are doing a slide-in replacement, no wiring changes
should be necessary.

MikeM