retro-thermionic

Retro thermionic audio harks back to the golden age of sound, utilizing vacuum tubes and thermionic valves to craft warm, rich tones. These analog components, reminiscent of mid-20th century technology, impart a distinct character to audio signals. Engineers embrace the harmonic saturation yielding vintage vibes sought after by audiophiles and music lovers. This process involves designing circuits with artistic and aesthetic intuition.

Friday, February 3, 2023

Reference - EAR834p MM phono stage

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  This the third of the EAR834p builds but only the second of this high-end kit. The PCB for both the preamp and PS are heavier duty 2oz cop...
Friday, January 13, 2023

External Xovers with high-end inductors

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  I was asked to make some external Xovers for another's expensive big speakers. Initially it was to be an electronic Xover which I have...
Sunday, December 25, 2022

"Ocean" - RCA 6SN7 preamp

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  Once more drawing from vintage tubes I've had for years here is another fabulous sounding super simple preamp. On a compact cast Al en...
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Saturday, November 26, 2022

"Mirage" - 6H3N-EB preamp

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There are many strange and wonderful tubes you can build preamps and power amps with. When repairing an Asian made 300B I thought the driver...
Thursday, October 27, 2022

"Player" - MM phono stage

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  When Jaycar discontinued this MM phono kit, some years back, based on the LM833 chip, I bought the last six in Oz. This is the last from 2...
Tuesday, October 11, 2022

"Vintage" - Radiotron 6SN7GTA preamp

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  I love the modern Chinese tubes especially the 6SN7 equivs. But this vintage Radiotron 6SN7GTA  is making me think again about vintage tub...
Thursday, August 25, 2022

"Zoi" - EAR834p tube phono stage

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  After the sale of my latest SET amp to a local he came back to order a tube MM phono stage. The EAR834p kit was a top of the range selecti...
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retro-thermionic
Fifty years+ in electronics with a passion for audio.
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