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Old 6th November 2018, 09:16 PM   #151
craigtone is offline craigtone  United States
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I know this is a silly question but is anyone willing to part with one of these little beauties?
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Old 7th November 2018, 08:56 AM   #152
marconi118 is offline marconi118  Germany
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Hi Nelson
how do you measure these nice scope traces of H2?

using a notch filter to suppress the fundamental signal?
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Old 7th November 2018, 01:25 PM   #153
Mark Johnson is offline Mark Johnson  United States
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A pleasant and helpful youtube video is here
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Old 7th November 2018, 02:00 PM   #154
marconi118 is offline marconi118  Germany
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Quote:
Originally Posted by indra1 View Post
Try Dick Moore's Active Twin-T notch filter.
using this Active Twin-T notch filter between amp and scope will I have the nice distortion trace on the scope (the bottom one in the video or in pass pictures) ?

Or do I need a more complex distortion meter with a specific output for that? (mentioned in the video)
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Old 7th November 2018, 02:03 PM   #155
indra1 is offline indra1  Indonesia
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Yes, no need for additional meter.
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