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Wow, those results look really impressive. I may have to revive my thoughts on making a hubrid tube + buffer using this idea for a buffer - although the input impedance will need to be low enough.
Are there commercial amps, where this kind of error correction is in use ?Inspired by NP in a "Hawksford" thread, I have developed a new error correction circuit. The schematic of working amp is attached. I have been testing it for more than a month (both measuring and listening) and results seem to be promising.
Hi, AKSA,
I found this arrangement of ML-33, it is advertised as a "non-turnoff" biasing scheme.
Is it really do not turn off?
There is a hard borderline between different load impedance concerning the THD+N character (fundamental notched out) - go to fig. 4 and 5 under
Mark Levinson No.33H monoblock power amplifier Measurements part 2 | Stereophile.com
8 ohms looks good, but after lowering the load impedance to 2 ohms and keeping the output voltage constant, resulting in 200W dissipation in the load, brought up both the level of second-harmonic distortion and the converting of character from sine wave to triangle/saw tooth character, as is shown in fig.5.
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