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.

Monday, November 12, 2012

4S Universal valve preamp in a Tea box (4SUTea)

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All housed in a Twinnings timber Tea Box: Bitumanised Al foil controls enclosure resonance and Russian paper in oil caps link t...
Tuesday, September 11, 2012

retro-34UL power amp

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In an effort to use-up so many spare parts I have I put together another EL34/KT88 amp. Part of the inspiration to build the ...
Wednesday, September 5, 2012

Fostex FE206En drivers in dual bass chamber box

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I had the boxes made some years back with no idea what I was to do with them. When I went back to 2 Channel theater with a...
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Monday, March 19, 2012

"Luciano" - 807 SE Power Amp

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I managed to purchase a couple of 807/ATS25 tubes for $7 each and were giving two in excellent condition. Both pairs of tubes test ...
Tuesday, February 14, 2012

"Paris Duo" - 6EM7 monoblock power amplifier

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Building on the success of the Paris amplifier (dual mono construction) I was asked to build a pair of monoblocks. Paris Duo has a two st...
Tuesday, December 20, 2011

Two Stage Tube Phono Preamp

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Tubecad, in a tutorial article, described a number of tube phono preamps. This is one of the simpler Tubecad designs and uses two 12AX7s i...
Wednesday, November 2, 2011

"Paris" - 6EM7 Dual Mono 2W Integrated amp.

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In this construction, "Paris", is a dual mono build. The preamp tube at the front of the amp is the on...
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retro-thermionic
Fifty years+ in electronics with a passion for audio.
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