SA-T7 Stereo Tube Preamplifier

Description

Standard, classic circuit technology does not fully exploit the potential of a valve. With the SA-T7 we have developed a preamplifier that raises the pure amplification of valuable music signals to a level never conceived of before with valves. Thanks to the newly developed BestPentode circuit (developed by chartered engineer Frank Blöhbaum), the current distribution noise typical of pentodes is now a thing of the past.

Transfer qualities of amplifiers are currently being challenged by modern signal sources. Traditional (classical) technology and ECC81/82/83/88 does not cover the full potential of tube technology.

We developed a Vincent pre-amplifier SA-T7 that increases pure amplifying of precious audio signals with tubing on a level never realised before. This is made possible by a patented circuit technology: A new BestPentode circuit developed by Dipl-Ing (Master of Engineering) Frank Blöhbaum eliminates those for pentodes typical electrical current noises. The BestPentode device has got a higher level of amplifying small noise than other triods. The high-level grid pentodes type E180F / 6SCH9P / 6SCH51P display their whole potential. The tubes are a new old stock (NOS) from storage that was used for amplifying high-frequency signals 24/7 in telecommunication.

The impedance converter consists of a grid triod type 6S3P-EV – a Russian military tube with a long life that was used in an MIG’s airborne radar. The noiseless power supply connectors of the BestPentode device provides for an extremely pure audio transmission. We developed our own module called Vimala (the meaning in Sanskrit is “pure, transparent and clear”) for this purpose.

Technical Specifications