Heath-Robinson-Style One Valve Receiver

[Terry]

Permeability tuning for the VHF band can be found in VHF/FM receivers of the 1950s-early 60s.
Tony

If you look at any Bush receiver, from the earliest 5-channel TV onward, all  of their VHF tuners, both TV and radio, are permeability tuned.

After going to such lengths to convert the push-pull action (one direction being spring driven) of their 13 channel tuners to rotary action in the TV53/63/75 series of receivers, I wonder if they really kicked themselves when they realised how easy it was to use the same tuner mechanics with push buttons (or Bush Buttons, as they were originally referred to) in the TV85 and later series ...