FT should be push & turn otherwise it will engage with normal
channel selecting. Dont remember them all though, SGVG
tuners most used the clothespin style FT mech or the wish bone.
Dont remember on non-SC sets but SC sets have a rocker switch
to kill the motor when it hit a channel. They would gum up
& sometimes break. Also had another disc with twist tabs for
channel skip. Also on some a blank channel was used as a TV
off position.
73 Zeno
LFOD !