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Old 23rd Jun 2012, 3:45 pm   #14
Alistair D
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Join Date: Jan 2010
Location: Edinburgh, UK.
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Default Re: NAAFI receiver problem

As far as the mixer is concerned, operating at lower current makes it easier for the oscillator to drive it into non linearity and hence generate the mixed frequencies one of which is the I.F. signal. Not sure why the 6K7 shares the cathode resistor though.

Al
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