Guidelines for simple ‘FET infinite impedance’ AM detectors.

[catman]

G'day all, just a little update that I thought I'd document. Regarding 'recalcitrant' MPF102's that produce distorted audio output, a technique that I've discovered produces very good audio output, is simply to parallel any two together.

I've tried this approach with otherwise poor performing MPF102's and my knowledge of FET's is not sufficiently good to say why, but it appears that combining in parallel any two MPF102 FET's, produces a vastly improved 'single' one for this application. It works very well! Regards, Felix (vk4fuq) aka catman.