direct heated triode
  1. Andykong

    Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91)

    Cayin HA-300MK2 Transformer Coupled Direct Heated SET Class A Balanced Driven Vacuum Tube Headphone Amplifier The Cayin HA-300MK2 is finally here. The new Cayin flagship vacuum tube headphone amplifier is scheduled to debut at CanJam Singapore 2022. Like its predecessor, the HA-300MK2 is a...
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