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As a matter of fact.....




I have modified the schematic according to your recipe and, even by placing a 12AX7 as input triode in the upper arm, no major change of 3rd harmonic is found in sims (steady -47 dB @ 1.2A peak - 3rd, raise of second harmonic at -70 dB).

Best Regards
Luca
ecc230


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