Audio

Vacuum tube amplifiers and home made speaker sets.

2W UCL82 SE tube amplifier

2W UCL82 SE tube amplifier
Introduction I got a very old TV from a colleague, it had been stored in his parents attic for almost 30 years. It was huge and ruined from the time it was stored, so he...

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2x30W EL34 Tube Amplifier

2x30W EL34 Tube Amplifier
Introduction Ever since building the 2W single ended tube amplifier, I wanted to build something better, something that is considered a good amplifier among tube amplifier enthusiast. It is in no way cheap to build...

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Isophon BS35 loudspeakers

Isophon BS35 loudspeakers
Introduction I started building a valve amplifier and thought to myself that I needed some proper Hi-Fi speakers from about the same age as the valve amplifiers was refined to the art it is today....

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50W 6P45S monoblock tube amplifier

50W 6P45S monoblock tube amplifier
Introduction The main reason for building a new set of amplifiers came with purchasing a set of old studio monitors, the legendary JBL 4333. These 75 Watt speakers with 15" bass drivers needed a amplifier...

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APX-100 Instrument To Audio Amplifier

APX-100 Instrument To Audio Amplifier
The BEAG (Budapest Electroacoustic Factory) APX-100 is a successful product with a 1970s design that was a strong title from the domestic industry. Vacuum tube design for public areas or large rooms. Nominal output power...

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