Fig 1. This basic source-follower circuit is the kind of amplifier you would find in an electric bass guitar amplifier. R6 provides the feedback. On the other hand, low-distortion applications require ...

Audio guru Steve Williams sent a link to Pete Millett's audio website. Millett designed the HA-1 and HA-2 vacuum tube headphone amps a while back. He describes himself as: “A lifetime electronics geek ...

If you asked [Hans_Daniel] what he learned by building a tube audio amplifier with a dozen tubes that he found, the answer might just be, “don’t wind your own transformers.” We were impressed, though, ...

Consider the plight of a mid-career or even freshly minted electrical engineer in 1960. He or she was perched precariously between two worlds – the proven, practical, and well-supported world of ...

"A publication of the Technology Press, Massachusetts Institute of Technology." ...