04.01.2009, 01:24 PM
@alfsch:
http://www.6moons.com/audioreviews/thorens/thorens.html
=> dritter Absatz:
"The Circlotron itself goes back to 1955 and Henry Wiggins' Electro-Voice circuit, a dual single-ended floating bridge affair. Cecil Hall was awarded a US patent for it around the same time. Another accounting lists Tapio Köykkä instead as having held the very first two patents for Circlotron architectures, albeit limited to his native Finland. His schematic published in the German radio magazine Funktechnik (issue 7 of 1953) to predate the Electro-Voice product. Then Jim Bongiorno used a Circlotron variation in his Great American Sound transistor amps during the 70s. The 80s saw Atma-Spere's OTL tube applications. BAT later joined that wagon with transformer-coupled circuits, Einstein with OTLs. And Gamut's high-power push/pull amps today use single Mosfets per phase to recall Thorens' "single-ended" massively monolithic 800W/300A monsters which eliminate the mismatches inherent in paralleled output devices."
Und weiter gehts dann damit, was am Thorens strukturell neu ist. Und warum mit der bekannten Circlotron Technik sich so ein Amp nicht realisieren lässt.
Bleiben wir hier im dazu passenden Thread doch mal bei Marios Entwurf, der die Halbleiterübersetzung des alten Circlotrons ist. Und versuchen dann, den so weiterzuentwickeln, dass er praxistauglich funktioniert.
Zitat:die zyclotron- besser: circlotron-idee is nicht von Thorens oder Arcolette , das gabs schon lange ...lange vorher:Das haben die auch nie bestritten (wäre ja auch albern). Siehe direkt im Thorens-Test
http://www.6moons.com/audioreviews/thorens/thorens.html
=> dritter Absatz:
"The Circlotron itself goes back to 1955 and Henry Wiggins' Electro-Voice circuit, a dual single-ended floating bridge affair. Cecil Hall was awarded a US patent for it around the same time. Another accounting lists Tapio Köykkä instead as having held the very first two patents for Circlotron architectures, albeit limited to his native Finland. His schematic published in the German radio magazine Funktechnik (issue 7 of 1953) to predate the Electro-Voice product. Then Jim Bongiorno used a Circlotron variation in his Great American Sound transistor amps during the 70s. The 80s saw Atma-Spere's OTL tube applications. BAT later joined that wagon with transformer-coupled circuits, Einstein with OTLs. And Gamut's high-power push/pull amps today use single Mosfets per phase to recall Thorens' "single-ended" massively monolithic 800W/300A monsters which eliminate the mismatches inherent in paralleled output devices."
Und weiter gehts dann damit, was am Thorens strukturell neu ist. Und warum mit der bekannten Circlotron Technik sich so ein Amp nicht realisieren lässt.
Bleiben wir hier im dazu passenden Thread doch mal bei Marios Entwurf, der die Halbleiterübersetzung des alten Circlotrons ist. Und versuchen dann, den so weiterzuentwickeln, dass er praxistauglich funktioniert.