Doubt with Phase Inverters DAVID KT88 PP

Here are the Circuit diagrams for single ended amplifierer with: 300B, EML300B-Mesh, EML300B-XLS, EML1605, KT120

Doubt with Phase Inverters DAVID KT88 PP

Postby Miguel » Tue Jun 12, 2018 6:19 pm


I am planning to assemble the DAVID KT88 AMPLIFIER

The diagrams are very good but I do not understand the box that appears in the " 6sn7 Phase Inverters" (R-C-0.95 x RA CALIBRATE WITH TRIMMER R-C TO R-A)

Can you explain what the adjustment is?

Greetings from Spain.
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