If you’ve ever wondered why something like a radio or a TV could command a hefty fraction of a family’s yearly income back in the day, a likely culprit is the collection of power transformers needed ...

There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries a bit of a cachet. New ones can be bought for eye-watering prices and old ones can ...

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 ...

Having built a number of vacuum tube output transformer-less (OTL) amplifiers in recent years, it seemed as though it might be a good idea to try combining older with newer technology and using both ...

The circuit was designed to create a power amplifier circuit that will utilize E80CC and EL34 vacuum tubes for better results while providing 35 Watts of power. E80CC – a special quality double triode ...

Like most of us during what advertisers like to call “this difficult time,” I was compelled to spend a fair amount of it “working” from home. Truth be told, I hadn’t worked so hard in years. My wife ...