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http://www.diyaudio.com/forums/soli...e-ended-related-solid-state-output-stage.html
I have listet some URLs, mostly basic articles and diy projects.
From the commercial brands with circlotron topology inside by solid state power output I know only "SUMO" (and several others with tubes like GRAAF GM-20). BAT (Balanced Audio Technology) perhaps uses also this topology by their solid state amps, but this I don't know exactly (schematic information wanted).
Which additional commercial brands uses this cross shunt push pull topology in their solid state amplifiers?
Thank you very much for your advices in advance.
http://www.diyaudio.com/forums/soli...e-ended-related-solid-state-output-stage.html
I have listet some URLs, mostly basic articles and diy projects.
From the commercial brands with circlotron topology inside by solid state power output I know only "SUMO" (and several others with tubes like GRAAF GM-20). BAT (Balanced Audio Technology) perhaps uses also this topology by their solid state amps, but this I don't know exactly (schematic information wanted).
Which additional commercial brands uses this cross shunt push pull topology in their solid state amplifiers?
Thank you very much for your advices in advance.
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really no informations about commercial circlotron solid state models?
The invention of the Circlotron amplifier has generally been generally attributed to Alpha M. Wiggins of Electro-Voice, Inc., Buchanan, Michigan.
more basic informations about this topology are there:
Circlotron History Page
The invention of the Circlotron amplifier has generally been generally attributed to Alpha M. Wiggins of Electro-Voice, Inc., Buchanan, Michigan.
more basic informations about this topology are there:
Circlotron History Page
Maybe you did not look hard enough :
6moons audio reviews: Thorens TEM 3200
Stereoplay, das Magazin fr Hifi, Surround und Musik - Know-how
The output stage, which is circlotron, is SS.
The front end is just normal tube gain stage.
Patrick
6moons audio reviews: Thorens TEM 3200
Stereoplay, das Magazin fr Hifi, Surround und Musik - Know-how
The output stage, which is circlotron, is SS.
The front end is just normal tube gain stage.
Patrick
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Thank you for this advice. additional I have find an additional solid state vintage amp with circlotron topology:
Vermona Regent 620
http://elektrotanya.com/PREVIEWS/63463243/23432455/regent/regent_620-1020-pwr.pdf_1.png
and concerning the Thorens TEM 3200 this sites:
6moons audio reviews: Thorens TEM 3200
Test der neuen Thorens Monoendstufe TEM 3200 in Stereoplay 01/06, Verstärker/Receiver - HIFI-FORUM
Circlotron Amplifiers Once Again
THORENS - TEM 3200
But there are must me a lot of more brands with circlotron/CSPP/PPP than Thorens, Vermona and Sumo - who knows additional brands without tubes in the power stage ??
here on diyaudio this new thread concerning the Circlotron topology exist:
http://www.diyaudio.com/forums/soli...g-schemes-bipolar-transistor-circlotrons.html
and partly this thread:
http://www.diyaudio.com/forums/solid-state/23526-best-mosfet-output-stages-11.html
Attachments
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I have heard, that Yamaha or DENON has introduce amplifiers with this CSPP topology. Who knows more ?
interesting devices:
Atma-Sphere music systems, inc.
unfortunately tube amplifiers.
Thank you.
Schematics are here for the models "A-S2000" and "A-S1000":
http://elektrotanya.com/yamaha_a-s2000_sch.pdf/download.html
http://elektrotanya.com/yamaha_a-s1000_sm.pdf/download.html
Hi Tiefbass !
After my provisional analyze of Yamaha AS series of Circlotron based SS Amp I have concluded that both Amps circuitry is too much complex , any way to have both original Yamaha manual from your links is not bad for future service purposes .
On the other hand Atma-Sphere founder & main circuit designer Mr.Ralph Karsten have fully supported DIY community to DIY his M60 OTL Circlotron tube Amp here : http://www.diyaudio.com/forums/tubes-valves/161112-what-tubes-tube-amp-2.html
Best Regards !
After my provisional analyze of Yamaha AS series of Circlotron based SS Amp I have concluded that both Amps circuitry is too much complex , any way to have both original Yamaha manual from your links is not bad for future service purposes .
On the other hand Atma-Sphere founder & main circuit designer Mr.Ralph Karsten have fully supported DIY community to DIY his M60 OTL Circlotron tube Amp here : http://www.diyaudio.com/forums/tubes-valves/161112-what-tubes-tube-amp-2.html
Best Regards !
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schematic representations from Japan show a significantly higher degree of compexity than it is in reality through their special art of drawing.
Carfully redraw shows the true level of complexity of the actually circuit.
Remove source select for "LISTEN" , source select for tape/record and volume control select switches (integrated circuit from Toshiba) and you know, what I mean.
P.S. I can't discover the typicall circlotron (CSPP) topology - only true complementary push-pull output buffer I have found. Who can help to find out the circlotron power amp section?
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Hi Tiefbass !
AS2000 service manual , page 66 ( H4 ) , six N type BJT power devices 2SC6011 it is connected to form output power stage balanced bridge ( Circlotron ) , actually three power devices is connected parallel per each bridge side .
Regards !
AS2000 service manual , page 66 ( H4 ) , six N type BJT power devices 2SC6011 it is connected to form output power stage balanced bridge ( Circlotron ) , actually three power devices is connected parallel per each bridge side .
Regards !
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Good advice. Maybe there are a lot of more models in such kind, but not typically for home audio/hifi like that one under post #4 and thus unfortunately unknown for the most. Where are the members from Russia and their experiences ?
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