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Multiple kinds of distortion...




I attempted to measure output power and distortion (distortion on my old Leader LDM 171). I got 7.6w out just prior to clipping. And IF I used the distortion meter correctly, it was about 2.3% distortion. Of course that made me suspicious that I was doing something wrong. Power was too low, distortion was too low. I figured 7 to 8 watts was what I'd get with triode wired EL84's so I took a peak under her skirt and sure enough, sometime long ago I converted to triode. As for the distortion reading, I'm not at all sure I did that correctly, seems like you should put a test signal in both the amp and analyzer but the instructions don't say anything about that. I also don't know if the amp should be on a dummy load, but I assume so. Anyway, distortion is suspect to say the least.

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