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.

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...
Sunday, July 31, 2022

“Persuasion” - 5998/6AS7 SET

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  Finished yet another SET. Meant to be another 6AS7 SET but I setup the HT on a 5998. When I put the 6AS7 in all biases and HT was wrong. S...
Thursday, June 2, 2022

"Koto" - 12AU7/6AS7 SET amplifier

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  Still on a roll to use expensive parts, stored away for many years in store room, here is a 6AS7 SET amp. Its been many years since I'...
Monday, May 16, 2022

"Timbre" - UX-171A power amp

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  I was commissioned to build an amp based on 100 year old UX-171A (71A) tubes. Fortunately I had a few pairs and was able to match two. The...
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Thursday, April 7, 2022

"Apparition" - 6H3N triode headphone amp

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  Having a small Hammond power tranni and three 6H3N triodes on hand I was looking for a build. Usually my headphone tube amps are based on ...
Thursday, March 3, 2022

"Palladom" - high performance F5

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  Palladom start life as a Turbo F5 build for another. But after some months he was not happy with the sound and offered to sell back the en...
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retro-thermionic
Fifty years+ in electronics with a passion for audio.
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