Steel or brass welding rod filed to a screwdriver end works well also.

Jim



"Scott Skylane" wrote in message
...
Marty,

Should be a very long (at least 12"), very thin (no more than 1/8") flat
bladed screwdriver. At least, that's what the original Cessna radio used,
I don't know if Michel changed anything.

Happy Flying!
Scott Skylane
N92054