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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: I know what to look at posted by Triode_Kingdom on November 30, 2015 at 00:53:19:
Update...
I took a look at my tube models compared to the tube curves and neither were very close so I used curve captor to create more accurate models. Now I do get the SN7 being more linear. Where i was getting about 1% for each with the old models I now get .022% for the SN7 and 1.5% for the BL7 at the same conditions. Reducing the drive by a factor of 10 (+-6V out) gives .15% for the BL and .0012% for the SN7.
Here are the FFT's of the two signal levels.
It seems possible that the BL7 is adding some of that yummy SE distortion that PP amps quash.
dave
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Follow Ups
- RE: I know what to look at - dave slagle 11:14:34 12/03/15 (2)
- Good info. (nt) - Tre' 18:00:37 12/03/15 (1)
- Another input on this... - Freo-1 14:00:52 12/19/15 (0)
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