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Synchrodyne · 19th Sep 2018, 12:38 am

I should also have mentioned that a very early effort to bring locked oscillator synchronous AM demodulation with selectable sidebands into the consumer product realm was made by GE in 1948 with its YRS-1 outboard adaptor, all done with valves, of course.

Cheers,

19th Sep 2018, 12:38 am	#71
Synchrodyne Nonode Join Date: Jan 2009 Location: Papamoa Beach, Bay of Plenty, New Zealand Posts: 2,944	Re: Historic AM audio quality I should also have mentioned that a very early effort to bring locked oscillator synchronous AM demodulation with selectable sidebands into the consumer product realm was made by GE in 1948 with its YRS-1 outboard adaptor, all done with valves, of course. Cheers, Attached Thumbnails