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, August 27, 2013
"Arabella" - 6EM7 amplifier on Acacia
Inspired to create by the sight of a beautiful Acacia chopping board I constructed this 6EM7 power amp. To hide the wiring and smaller components underneath a shallow Al skirt was fashioned. Larger power supply components are housed in a small enclosure at the rear which supports RCAs and binding posts. The amp sits on three polished brass cones.
The OPTs are Edcor GXSE, power transformer and 20H choke, Hammond. The valves are NOS AWA 6EM7 from Holland and the rectifier tube, 5Y3. Arabella only produces a few watts of power but has a clear and open sound. The amp is dead quiet due to the large choke and two stage filtering. This is not only a beautiful looking amp but a beautiful sounding amp.
Hi, look nice.
ReplyDeleteI have build dozens of 6EM7 amps, love them!
what does the diagram look like?
how much power can you get out of them?
thanks for letting me know
To find the full schematic and information behind my three 6EM7 amps you will have to visit diyaudioprojects.com. You will need to register but it is a good site with a lot of projects posted.
ReplyDeleteI get about 1.5W from my 6EM7s before the sine wave starts to mis-shape. Theoretically they should develop about 2.5W with low distortion.