Airbus wrote:

I recently flew an older Cessna, in which the NAV frequency select was
directly ON the VOR indicator, as was the DME readout. This just seemed
like good ergonomics to me - no way to make a mistake. Who makes these?
Why do we see them so rarely?


NARCO. One of the few good things they ever did.

It ought to be possible now to do that quite practically with the
miniturization of components.