You can install one of jim's intercoms in a factory built airplane.

Certain conditions apply, but it doesn't jeopardize the "standard
airworthiness certificate" the aircraft.

And, given that situation, Jim's Audio Panel/intercom has a built in
"bypass feature" that directly shunts the pilot's jacks directly to com 1.

Dave

wrote:

Hello Jim!

It's been a while! I didn't get a chance to see you at Oshkosh this
year, it was a short visit for me.

Hope you are doing well and that the intercom business is treating you
well.

I would like to let you know that the answer to the question of the
original poster would actually be yes, if he was installing one of our
FAA TSO'd intercoms. The reason? Because these Auxillary Mic and
Headphone jacks are listed as a requirement in our approved data,
(Install Manual) when installed in a certified aircraft.

Home built, you are correct, but installations in certified aircraft,
our approved intercoms must be installed in accordance with our
approved data. Remember, manuals are part of the TSO'd approved data.

Anyway, just thought I'd throw my 2 cents in.

Take care Jim.
Mark

RST Engineering wrote:

No.

Jim



Before I ruin my back wiring a direct of jacks in place I ask Are direct
inputs to the radio required? If so what requires them?