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 ...

Equipped with two ISA mic preamps based on Rupert Neve's original designs, ISA C8X fuses classic sound with a modernized ...

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 ...

Mile End Effects has made a replica Roland Space Echo RE-150 preamp circuit and housed it in a compact enclosure with a switchable JFET boost that lets you dial in some overdrive to the vintage preamp ...

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 ...

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 ...

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 ...