DUAL cv12 (1967-72) redesign

[Hayk]

I increased the VAS current and replaced the VAS transistor with mosfet because the biasing resistor became very low. The THD at 25w 8 ohm is 0.0066%. To get 50w 4 ohm the output transistors must have hfr of 140 or else any modern transistors with hfe of 100 can do with 8 ohms.