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Krohn-Hite 6880 Distortion analyzer
Krohn-Hite 6880 Distortion analyzer
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Old 14th September 2012, 07:12 AM   #1
drlava is offline drlava  United States
diyAudio Member
Join Date: May 2005
Location: OH
Default Krohn-Hite 6880 Distortion analyzer

In the portland area, but will ship.

I picked this up surplus, but it turns out it's missing the twin-t board. All other boards are present, including the oscillator, filtering, control, input, null detector, output, and opto-isolator boards. The unit powers up and responds, giving a sine wave output, active filtering and measurements, only it measures 0.000% and -99.9dB THD due to the missing twin-t board. The missing board schematic is on line here:


Anyone who might want a project, or already has a unit and wants a parts unit, here you go please make an offer.
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