6BQ5 EL84 pentodeconnection stereo amplifier

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Power tube: EL84 (Sovtek, Russia)Driver: 12BH7A (Raytheon Black Plate) SRPPNegative feedback: 0, -5dB, -10dB (this time 0dB)The heaters of 12BH7A and 6BQ5 ar...

6BQ5, amplifier
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