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.

If you ever wanted to build your own tube amplifier but you were intimidated by working with high voltages, [Marcel]’s low-voltage tube amp design might spark your interest. The design operat… ...

McIntosh Laboratory has launched a very limited 50th Anniversary edition of its iconic MC275 tube amplifier.

With feedback and high gain expect 0.5% total harmonic distortion. Schematic of a class AB tube power amplifier with negative feedback. A typical tube power amplifier is a class AB with feedback.

Dynaco liquidated in 1980 — primarily due to improvements in solid-state amplifiers and a 1974 FTC ruling that changed the standard way of rating amplifiers’ power levels. But the ST-70 has remained ...

Even at $4,000, this tube amplifier is a remarkable value Hand-crafted in New Jersey, the all-tube stereo VPI 299D integrated amp looks, feels and sounds like a winner to the Audiophiliac!

The Hi Power is pedal that is explicitly based on the Coloursound Power Boost and a 1970s Hiwatt tube amp, and spiritually inspired by David Gilmour ’s electric guitar tone on Pink Floyd’s 1975 ...

Why you should ditch your Bluetooth speaker for the smooth, sweet and surprisingly affordable sound of a vacuum-tube amplifier.

The power supply features a specially designed, shielded 120W transformer. The transformer is combined with an independent, low-noise voltage amplifier, stage voltage regulator circuits for the left ...

The gold-plated reference level 50th Anniversary Limited Edition McIntosh MC275 tube power amplifier is now available from authorized McIntosh dealers for a suggested retail price of $6,500.

Researchers under DARPA 's Terahertz Electronics (THz) program have designed and demonstrated a 0.85 Terahertz power amplifier using a micromachined vacuum tube—a world 's first.

50 year old classic tube power amplifier is upgraded and improved with modern convenience and performance enhancements in a gold-tone chassis McIntosh Laboratory announced its 50th Anniversary Limited ...