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Articles
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Harvey "Gizmo" Rosenberg's N.Y.A.L. OTL works. Of course we all know Julius Futterman, the inventor of the OTL amplifier. And of course we also know the person who started the first production of those, it was HARVEY ROSENBERG who called himself Dr. Gizmo. When I think about the way HARVEY ROSENBERG was scammed on the Audio Asylum Forum, and about they way a bunch of unmature moderators let this go on, I get this feeling what a good Internet Forum is not supposed to be. We had just started sponsoring the forum, and we stopped with it quickly again. This was one of the worst examples of bad moderation I have ever seen. Anyway, this is not what the article is about... The article is about the works of Harvey Rosenberg. |
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You changed good ECC88 for new ones, and the new ones are BAD. They give a looud crack noise sometimes. You are ANGRY, about the new new tubes. Read here about what very probably causes the problem. |
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Look here what comes out of a tube after taking it all apart. |
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Nice original article by the Tungsram company about how it all began It is in Hungarian + English language |
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Read more about Lynn Olson's works |
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Read the article |
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How a vacuum tube works, by Eric Barbour |
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An overview of amplifier topologies, by Lynn Olson
This presentation says a lot in a small space, and could easily be the subject of an entire book. This is a MUST read for every engineer. |
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By C.E. Atkins Commercial Engineer Tung-Sol Lamps Works, Inc.
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A detailed article by M. Feretti, about how to use the 2A3 tube. Marco is a student of electronic engineering at the Turin Polytechnic in Italy. He became involved with tube amplification in highschool, and then was attracted to audio reproduction. After practicing with push-pull amplifiers, he focused his research on single ended designs. |
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