On Thu, 02 Apr 2015 09:10:47 -0500, amdx wrote:

I'm about to build this circuit to compare output from different
ferrite receive antennas. I will be using it with the the FET amplifier
referenced at the bottom of the page, so the input impedance is not a
concern. I'm mostly interested in the DC output to monitor signal
levels. AM band frequencies.

http://www.crystal-radio.eu/diodedet...dedetector.htm

Any fix for the sinewave distortion in the second and third scope traces.
Mikek

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At AM band frequencies there now exist fast enough OpAmp's to make a
nearly ideal diode detector.

...Jim Thompson
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| James E.Thompson | mens |
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| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

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