Quote:
Originally Posted by kalee20
It's also worth considering, a HF push-pull input, maybe a double-triode with cathodes strapped together. That would allow a halving of the cathode capacitor value for the same degree of HF ripple, so the audio frequency at which non-linear distortion started to kick in would be doubled.
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I asked a question about the full wave version of the diode detector used in the Murphy A8 back in 2008.
http://www.vintage-radio.net/forum/s...ad.php?t=28053
Perhaps this is why Murphy chose to use a full wave detector particularly in view of the low IF frequency used. The cathode capacitor in your statement above equating to the capacitor across the diode load in the diode detector.