The International Cessna^® 170 Association

Good afternoon,
Does anyone have a wiring diagram for the above and if possible scan and send it.
Or, if there is one already posted here somewhere if they could direct me to it.
Thanks,
Pat

Are you speaking of the push-to-talk (PTT) switch?
If so, it's a common circuit and available in most intercom schematics. (I just ain't anywhere near my own to scan for you.)