The circuit was designed to create a line preamplifier by acquiring the use of double triode tubes. The circuit comprises of three parts, the main preamplifier circuit with tubes, the input selector ...

The circuit is a sensitive preamplifier using an N-Channel FET and a PNP transistor. This combination gives high input impedance and low output impedance with stabilized gain. Any general purpose PNP ...

When most people think of tube circuits, the first thing that comes to mind is often the use of high-voltage power supplies. It wasn’t a given for tube circuits, though, as a range of low-voltage ...

Parasound, a San Francisco-based manufacturer of high-end audio components, has announced that it is now shipping the first production samples of its much-anticipated John Curl designed Halo JC 3 ...

Vishay Intertechnology, Inc. has announced an upgrade to its VSOP383xx series of preamplifier circuits for infrared (IR) remote control applications, introducing the new Cyllene 2 IC. These upgraded ...

MALVERN, Pa., March 05, 2025 (GLOBE NEWSWIRE) -- Vishay Intertechnology, Inc. (VSH) today announced that it has upgraded its VSOP383xx series of preamplifier circuits for infrared (IR) remote control ...

With fully balanced and improved circuitry throughout, the BAT VK-85 Preamp and REX 300 Amp claim pure musicality from a $27,500 combo. The REX 300 is a lower-powered version of the highly regarded ...

Parasound is now shipping its John Curl designed Halo JC 3 Phono Preamplifier, a high-performance dual-mono phono preamp built with high quality parts, solid construction, and a very clean design.