CSPP/Cirlotron - Brand Names of Commercial Solid State Amplifiers

tiefbassuebertr · 03:45 PM

About
URL collection of Totem Pole and CSPP (Single Ended related) Solid State Output Stage
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.

tiefbassuebertr · 29th March 2010, 03:34 PM

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

EUVL · 04:41 PM

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

tiefbassuebertr · 06:00 PM

Quote:

Originally Posted by EUVL

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

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/634...-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:
Biasing schemes for bipolar transistor circlotrons
and partly this thread:
Best MOSFET for output stages

tiefbassuebertr · 22nd February 2011, 09:51 PM

Are there any news?

tiefbassuebertr · 24th May 2012, 09:57 AM

I have heard, that Yamaha or DENON has introduce amplifiers with this CSPP topology. Who knows more ?

8th February 2010, 03:41 PM	#1
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	CSPP/Cirlotron - Brand Names of Commercial Solid State Amplifiers About URL collection of Totem Pole and CSPP (Single Ended related) Solid State Output Stage 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. Last edited by tiefbassuebertr; 8th February 2010 at 03:45 PM.

29th March 2010, 04:21 PM	#3
EUVL diyAudio Member Join Date: Oct 2003	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 Last edited by EUVL; 29th March 2010 at 04:41 PM.

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29th March 2010, 03:34 PM	#2
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	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

22nd February 2011, 09:51 PM	#5
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	Are there any news?

24th May 2012, 09:57 AM	#6
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	I have heard, that Yamaha or DENON has introduce amplifiers with this CSPP topology. Who knows more ?

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