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  • en Class A headphone amplifier with BUF634

    Description: Some time ago I bought a pair of in ear headphones and I am very pleased with them, but I don't have a decent headphone amplifier for them...
  • en 6c33 single ended triode amplifier

    Description: My brother and I have build two 6C33 SET (single ended triode) 15 Watt Class A amplifier. This is a very nice amplifier with a very pleasant warm...