I should have been more specific. I need the pinouts. I was hoping to
find a datasheet. I'm not going to use the filter in a Kenwood radio.
Basically, it's a flea market find.

wrote:

I should have been more specific. I need the pinouts. I was hoping to
find a datasheet. I'm not going to use the filter in a Kenwood radio.
Basically, it's a flea market find.

Do a search for International Radio or InRad. They might be able to help you
out.

dxAce
Michigan
USA

It helps in the sense that I now know the impedance is 2000 ohms,
assuming the InRad filters are the same impedance as the other
kenwoods. With equal impedances (sort of what I expected), I assume
that input and output can be interchanged..
http://www.qth.com/inrad/home.htm