Can anyone hear supply me with a schematic to the Classee DR3-VHC Class A power Amp. I contacted Classee and got the folling reply.
Request>
Could you email me a copy of the Schematic to my DR3-VHC Class A power Amp Ser # 8700219 Thanks
Reply>
Hello Philip,
I am sorry but we do not release schematics.
Armin Gschwendtner
Customer Service Manager
Classe Audio Inc.
(514) 636-6384
cservice@classeaudio.com
Request>
Could you email me a copy of the Schematic to my DR3-VHC Class A power Amp Ser # 8700219 Thanks
Reply>
Hello Philip,
I am sorry but we do not release schematics.
Armin Gschwendtner
Customer Service Manager
Classe Audio Inc.
(514) 636-6384
cservice@classeaudio.com
Tube_Dude. You Rock Thanks alot, BTW i dont see how this design is so unique that the manufacture would not give its owners needed service data. I went throught this once before prior to the internet and it left a real bad taste in my mouth with regards to manufactures that have this closed door attatude.
ppl said:i dont see how this design is so unique that the manufacture ....
Hi PPL
Maybe the manufacturer believe that "this design" is unique!!
Maybe the manufacturer is like the husband...the last one to know..
Cheers
![drink :drink: :drink:](https://files.diyaudio.com/forums/images/smilies/drink.gif)
Tube_Dude said:
Interesting site with interesting amplifiers to have a look at. What do you use to open ps files?
Carlos
Hi,
For opening these postscripts you need to download Gsview 4.8 and GPL Ghostscript 8.54 . It is in the web site of Wisconsin computer sciences university : url : http://www.cs.wisc.edu/~ghost/index.htm
Regards
By the way i have started discovering the Classe Seventy Power amp using a multimeter and a scope . Whenever i finish i will make it available to public
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
For opening these postscripts you need to download Gsview 4.8 and GPL Ghostscript 8.54 . It is in the web site of Wisconsin computer sciences university : url : http://www.cs.wisc.edu/~ghost/index.htm
Regards
By the way i have started discovering the Classe Seventy Power amp using a multimeter and a scope . Whenever i finish i will make it available to public
Classe Audio Seventy Output Schematic
Hi,
I have explored the Classe Audio Seventy and I have found the darlington transistor 2n6426 was malfunctioning. I couldn't find the 2n6426 in the local electronic shops so i have replaced it with the similar transistor BC517. It is now working well . I have adjusted the bias resistor for an idle current of 150 mA . I am not sure about this setup but i think it's not bad.
Has anyone have an idea about the idle current of Classe Seventy ?
Below is the output stage schematic of Classe Audio Seventy that i did explored with a multimeter.
Thanks
Reha
Hi,
I have explored the Classe Audio Seventy and I have found the darlington transistor 2n6426 was malfunctioning. I couldn't find the 2n6426 in the local electronic shops so i have replaced it with the similar transistor BC517. It is now working well . I have adjusted the bias resistor for an idle current of 150 mA . I am not sure about this setup but i think it's not bad.
Has anyone have an idea about the idle current of Classe Seventy ?
Below is the output stage schematic of Classe Audio Seventy that i did explored with a multimeter.
Thanks
Reha
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