Philips radio push-button tuner.

[Mike Watterson]

Sounds like the in/out permeability tuned push button car radios derived from this? Those fascinated me in 1970s! Very ingenious how the "preset" was changed by pulling out the button. Also unlike modern presets, the scale pointer showed what the button did. The ergonomics of many modern things is rubbish, with interfaces designed only for showroom appearance and for lowest cost.