So, 57 years ago, started an ad in Electronics Weekly’s edition of April 12 1960.
The ad continues:
Covering all TV channels plus four FM channels these Plessey tuners use a new contact design in the turret to give accurate re-setting with minimum frequency drift and low contact resistance throughout a long life.
A motorised version (PL14M) is available and can be mounted any where in the receiver, as its position is not dictated by the need to provide a linkage with front panel controls-remote control is easily provided.
A further advantage is that no mechanical loading is imposed on push-buttons.
The specially-developed drive unit uses a mains induction motor to give interference-free operation.
The clutch unit allows self-indexing of the turret for accurate re-setting.
Maximum operating time is 7 seconds for full rotation.
Mounting facilities are provided to enable an inter-station muting switch to be installed if required.