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G6Tanuki · 19th Aug 2016, 1:05 pm

When broadcast TV was first introduced in the days before WWII there were some "Vision-only" TV receivers offered, specifically for use with a separate receiver that had TV-sound.

The Pye 817 being one such example.

Bear in mind the cost of a TV receiver at the time (about the same price as that of a medium-sized new car...). Omitting the entire audio-chain from the TV was a worthwhile cost-saving even in a 'luxury' product like a TV.

There were also some "budget" TV receivers produced immediately after WWII that had the sound-channel but only as far as the detector stage: you were expected to connect the output to the "Gram" input of your radio to use this as an audio power amplifier.

19th Aug 2016, 1:05 pm	#27
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,007	Re: "Television Sound" on vintage radios When broadcast TV was first introduced in the days before WWII there were some "Vision-only" TV receivers offered, specifically for use with a separate receiver that had TV-sound. The Pye 817 being one such example. Bear in mind the cost of a TV receiver at the time (about the same price as that of a medium-sized new car...). Omitting the entire audio-chain from the TV was a worthwhile cost-saving even in a 'luxury' product like a TV. There were also some "budget" TV receivers produced immediately after WWII that had the sound-channel but only as far as the detector stage: you were expected to connect the output to the "Gram" input of your radio to use this as an audio power amplifier.