The power amplifier section also makes use of ... Filament voltages are either 6.3 or 12.6 as denoted by the first digits of the tube number in most cases. The high voltage is the “plate ...

Vincent Audio has introduced the new SP-331MK hybrid vacuum tube and solid-state power amplifier that is a performance enhanced version of the company’s popular SP-331 power amplifier. While the ...

Fig. 2: A simplified version of the Doherty “high-efficiency” amplifier circuit. However, a good starting point is to think of it as a parallel arrangement of two triodes, with the first biased for ...

Integrated amp. Phono stage. Tube amplifier. Mono-block. Active speaker. Control amp. Receiver. Solid-state amplifier. Step-up transformer. Powered speaker. Power amp. ... The Mark Levinson 600 Series ...

The McIntosh MC3500 MKII is a 350-watt power amplifier with eight EL509S high-power output vacuum tubes. It’s a single-channel amplifier that costs $15,000, meaning you’ll have to drop $30,000 to ...

The VPI 299D tube integrated amp. VPI. I think the 16-by-15-by-7-inch amplifier is simply gorgeous. The "champagne" hued faceplate and the silky feel of the controls harken back to the glory days ...

The schematic shows one channel of a stereo amplifier, and the power supply is sufficient for both channels. Transformer T2 supplies the voltages required for the vacuum tube plates. Selection of the ...

By the other end, to build a hi-fi 2 x 50 w RMS amplifier with a distortion lower than 1 % over the full power range, you need 2 200 VA transformers, one 300VA transformer, 4 power tubes and 12 ...

The Valhalla 3 is a pure triode amplifier that borrows technologies from the company’s high-end Folkvangr. The Valhalla 3 is Texas-made. Schiit Audio Valhalla 3 tube amplifier ...

Figure 3 Solid-state RF power amplifier, corrected. Figure 4 Vacuum tube RF power amplifier, corrected . In these two new schematics, a radio frequency choke (RFC) has been added across the RF output.

Paired with Bowers & Wilkins' 805 D3 speakers, the Minotaur's transparency came to the fore. In fact, I never once thought the Minotaur sounded like a tube amplifier.

Schiit Audio’s Valhalla 3 is a high-end tube headphone amplifier primed for the desktop. It borrows a lot of tech from the company’s larger Folkvangr ($1,799), including its OTL/OCL design, which has ...