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All things related to vacuum tube amplifiers
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    • “Hamilton” Amplifier
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Projects Gallery

Completed projects (click images to enter)

  • Hamilton Amplifier
  • 3ch Line preamp
  • EL84 Amp
  • Tone Control
  • Iwa Wairua Amplifier
  • KT88 Amplifier
  • Matariki Amplifier

Posts Archive

Categories

Recent Entries

  • “Model7” – amp-on-a-board January 21, 2020
  • Triode equivalances – Russian and Western October 29, 2019
  • A positive review from an audio journalist, and the end of ATRAD Audio July 14, 2019
  • When suppliers go the extra mile February 19, 2019
  • Continuous Improvement February 15, 2019
  • A tale of two products January 3, 2019
  • PP Fixed Bias circuit design and calculator December 17, 2018
  • A better time delay startup circuit November 14, 2018
  • Build completed July 28, 2018
  • Advice comes at a cost July 17, 2018
  • PCB Party July 14, 2018
  • Measure twice, cut once July 5, 2018
  • Hammond Power Transformer temperature problem May 30, 2018
  • EL84 Amp II – Progress post 5 + listening tests March 24, 2018
  • EL84 Amp II: Progress post 4 February 11, 2018
  • EL84 Amp II: Progress post 3 February 2, 2018
  • EL84 Amp II: Progress Post 2 January 3, 2018
  • EL84 Amp II: Progress Post 1 December 16, 2017
  • New project: Another EL84 Amp December 4, 2017
  • Tone Control Finished November 29, 2017
  • FFT Tests on the Tone Control November 9, 2017
  • Gestation photos of the Tone Control project November 7, 2017
  • New project – Tone Control October 16, 2017
  • Amplifier Horoscope eCommerce Service September 30, 2017
  • Fine-tuning the NFB July 17, 2017
  • Last piece of the EL84 amp design May 17, 2017
  • EL84 Amp completed May 15, 2017
  • Some progress on the EL84 amp April 24, 2017
  • Design made pretty February 10, 2017
  • Design Process – the ugly end February 3, 2017

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ATRAD Audio – All things related to vacuum tube amplifiers

 

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