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G6Tanuki · 30th Oct 2017, 8:55 pm

I wonder perhaps if the infinite-impedance detector was hampered in its acceptance in 'high quality' receivers because the high unloaded 'Q' of the tuned-circuit feeding it would have provided too-sharp a response for 'hi-fi' audio reception unless the IFT was deliberately damped (thereby losing the benefit of the II detector!) ?

Equally, the lack of 'free' AGC from a classic diode detector would have made it less popular, probably needing an extra valve compared to the usual Double-Diode-Triode-and-Beam-Tetrode audio lineup used by pretty much every broadcast-radio from about 1935 onwards.

30th Oct 2017, 8:55 pm	#4
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,998	Re: Infinite Impedance detectors. I wonder perhaps if the infinite-impedance detector was hampered in its acceptance in 'high quality' receivers because the high unloaded 'Q' of the tuned-circuit feeding it would have provided too-sharp a response for 'hi-fi' audio reception unless the IFT was deliberately damped (thereby losing the benefit of the II detector!) ? Equally, the lack of 'free' AGC from a classic diode detector would have made it less popular, probably needing an extra valve compared to the usual Double-Diode-Triode-and-Beam-Tetrode audio lineup used by pretty much every broadcast-radio from about 1935 onwards.