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 ...

Feliks Audio is one of the few boutique brands from Poland making serious noise in the Head-Fi scene. They specialize in ...

Tubes can only pull, so the output transformer is powered from a center tap on its primary winding. Finally, the output is fed both to a loudspeaker and through a feedback network to the first stage.

Transformer T2 supplies the voltages required for the vacuum tube plates. Selection of the 5AN8/6AN8 vacuum tube is partly based on the fact that they are readily available and not expensive.

The build ended up consisting of a HT supply regulated at 350V, an LT supply half DC-regulated at 6.3V, a 12AX7 input/bass/treble section, 6922 concertina tubes, and an EL34 ultra-linear output ...

The GA-10 is an audiophile-grade headphone amplifier that features the SEPP (single-ended push-pull) circuit with eight vacuum tubes, a linear transformer, and direct tube output. The vacuum tubes ...

Peavey has also released the 6505 1992, a period-correct replica of the original model, with the newly designed transformer, and the big difference between that and the 6505 II being that the latter ...

The TV-10 A is one classy Class A 10W tube amp, with a 12" Celestion driver, a 6L6 in the power amp, and an effects loop, digital reverb and emulated line out. ... and the sound of that 6L6 power tube ...