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 ...

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 ...

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 ...

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 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 ...

The combination of MaxLinear’s Digital Pre-Distortion (DPD) linearization technology (MaxLIN), running on the Sierra single chip Radio SoC, and RFHIC’s ID19801D GaN high-efficiency power ...

Guerrilla RF’s GRF5509 high-performance power amplifier paired with Impinj’s advanced RAIN RFID reader chips to enable increased read range and improved readability of RAIN RFID tags ...

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 ...