Gerhard Haas (8)

1-03-2005 | Thanks to its robustness, the legendary EL156 audio power pentode has found its way into many professional amplifier units. Its attraction d...

1-02-2003 | In this semiconductor age, we find valves being used increasingly often for hi-fi and guitar amplifiers, top-end condenser microphones and s...

1-05-2001 | Thanks to their pleasant sound, valve-type power amplifiers continue to enjoy uninterrupted popularity. With such an amplifier, you can elim...

1-12-2000 | In spite of CDs and digital audio signal processing, there are still people who are devoted to the vinyl phonograph record. And they enjoy t...

1-10-2000 | Those who spare no expense for perfection, can now exchange their volume potentiometers for high precision step resistor switches.High-grade...

1-09-2000 | Once you’ve stuffed all the boards that go into the design, the Valve Preamplifier is ready for assembling and wiring. The results (see pict...

1-07-2000 | You should use only the best components to build a high-end amplifier, if you want to achieve and maintain the specified performance figures...

1-06-2000 | The good old valve amplifier is experiencing a renaissance. Consequently, we present a valve preamplifier that unquestionably belongs to the...