Most of the work that [Ron] has done in the past with vacuum tubes and solid state electronics has been repair. At 59 years old, he finally put together his own stereo tube amplifier and we have to… ...

Continue reading “A Tube Stereo Amplifier, ... The output stage consists of two Edcor audio transformers (one for each channel) that converts the high voltage for its 8 ohms speakers.

The Dynaco ST-70 was the company’s first stereo amplifier. It utilized four EL34 output tubes, one GZ34/5AR4 rectifier tube, two 7199 input (driver) tubes, two ultralinear output transformers ...

ESOTERIC, a division of TEAC America, Inc., manufacturer of high end consumer electronics, is now shipping a 3 stage tube amplifier that doubles as a line level amplifier. The amplifier was first ...

The ST-70 plays through a pair of Onkyo D-102AX speakers an English friend helped me pick out in Akihabara, Tokyo's electronics district, when I lived in Japan 18 years ago.

Last year, Gear Patrol contributing staff writer Eric Adams reviewed the Monoprice Stereo Hybrid Tube Amp that comes bundled two 50-watt speakers and 10-foot cables. His conclusion: “I had to keep ...