My grandparents’ beautiful wood console TV also had the more rare horizontal hold. I have many fond memories of watching Gunsmoke, Star Search, and Wheel of Fortune on the thing with my grandad.
Most do but as a higher-frequency (15kHz) oscillator, it has smaller components that don’t drift as much and so the control is a trimmer inside only calibrated as often as a tube needs swapping. On transistor sets, that’s like, never, so they glue the trimmer to avoid misadjustment during transport.
My grandparents’ beautiful wood console TV also had the more rare horizontal hold. I have many fond memories of watching Gunsmoke, Star Search, and Wheel of Fortune on the thing with my grandad.
Most do but as a higher-frequency (15kHz) oscillator, it has smaller components that don’t drift as much and so the control is a trimmer inside only calibrated as often as a tube needs swapping. On transistor sets, that’s like, never, so they glue the trimmer to avoid misadjustment during transport.