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Old 22nd Nov 2017, 8:38 pm   #39
G6Tanuki
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Join Date: Apr 2012
Location: Wiltshire, UK.
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Default Re: Most Minimal Superhet

Quote:
Originally Posted by Neil Purling View Post
So the ECH81 just makes less noise in the conversion process. And this is going to be noticeable to the naked ear?
For a simple broadcast-band radio no, but on the shortwave bands yes.

The "Conversion conductance" of the ECH81 is also better than the earlier Octal valves [think of 'conversion conductance' as essentially the gain of the mixer, though it's really rather difficult to quantify gain in a mixer]
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