More about preamp (157)

1-04-2003 | This valve power amplifier is a push-pull design using two EL34s (or their 6CA7 US equivalents). It has been kept fairly simple to avoid pro...

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...

1-09-2002 | This power supply unit (PSU) provides hum-free and stable operating voltages for valve preamplifiers and power stages. Negative bias voltage...

1-10-2001 | The Tube Clipper is an effects unit which can be inserted in the audio path of a stereo system. It provides that ‘valve sound’, but without...

1-01-2001 | Although this supply was primarily designed for use with the Valved RIAA Preamplifier, we found that the inverter stage is useful in many ot...

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...

1-09-2000 | 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...

1-07-2000 | Phonographs are gradually becoming a rarity. Most of them have had to yield to more advanced systems, such as CD players and recorders or (p...

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