Jim Weir question - Comtronics helmet adaptor?

I believe Comtronics has a web site. Why not ask the maker?


"Richard Riley" wrote in message
...
I have a new Comtronics "Ultra Pro 2000" (doncha love that name?)
helmet/headset. It's output is a single 1/4" plug with 3 contact
bands. When I stick it in the phone jack on an intercom I can hear
but (not surprisingly) can't transmit.

I need to make a little adaptor to go from that to a standard 2 plug
output so I can plug into my dull old standard patch cable for an Icom
handheld.

I was thinking you may have already written an article on how to do
that. Got anything lying around, or any advice before I start?

Thanks.