"Jay Honeck" wrote:

Any recommendations on repair versus replacement?

I can no longer imagine having a transponder with four knobs.

If you get one with sequential digital entry, you can leisurely scoff at all
the Usenet arguments about the dangers of flipping through 7XXX codes...

It's really a minor thing, but I also like the fact that my transponder
displays pressure altitude. When I need to know pressure altitude, it saves
me the trouble of futzing with the Kollsman knob.

Jay, you fly one of the greatest GA airplanes ever designed (except for its
notable lack of a pilot-side door), and it deserves nothing less than the
best.

http://www.garmin.com/products/gtx327/
http://www.bendixking.com/static/cat...ls.jsp?pid=142