[simpits-tech] Avionics knobs

[Matt Bailey]

Been trying to find some knobs to use to tune radios in X-Plane. X-Plane
has a key for tune up and another key for tune down. So, I thought I
could simply get a ratchet type switch or a switch with a tab in it that
has two sets of contacts...one would make contact momentarily when the
knob is turned one way, the other contacts would make contact
momentarily when the knob is turned the other way. No luck at RadioShack
or the local electronics shop. I thought perhaps the tuner knobs in some
80s model cars might work, the ones that have a regular knob to tune the
radio but have a digital display of the frequency. Does anyone know how
the knobs in a typical real aviation radio work (the kind with the
digital display)? Are they encoders or something?

I'm curious about how other people are doing this.

	-Matt Bailey