You can buy one from Sporty's for ~$20... It even comes with the cords, so
you can plug it right in to your intercom.

My understanding is that you could build one from Radio Shack parts, since
the plug-in PTT switches are not FAA certified (nor are headsets, for that
matter).


"Jackal24" wrote in message
...
I need to get a push to talk switch for the Cessna's I rent now. I have
noticed that they are very expensive for what they are (a switch). Is it
legal to build my own from Radio Shack type parts? If so, does someone
have
the specs?

Tyson