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Old 8th February 2005, 11:51 AM   #1
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Default looking for powerfull Single Enbded diagram.

Hi,

I'm looking for a powerfull Single Ended ( stereo integrated) amplifier diagram!

Does anyone knows one ( even a prototype ) ?

Thank.
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Old 8th February 2005, 12:26 PM   #2
Yvesm is offline Yvesm  France
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How much powerfull ?
5, 10, 50 watts, or even more ?

Yves.
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Old 8th February 2005, 02:14 PM   #3
hacknet is offline hacknet  Singapore
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813 single ended?
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Old 8th February 2005, 09:18 PM   #4
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How high can the supply voltage go? 500V, 1kV, 2.5kV...

There are a few 100W 833 SE designs out there, but I most cetainly can't reccomend people building them unless they really know what they're doing...
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Old 8th February 2005, 11:03 PM   #5
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You can get 50watts from this, no trouble doing a stereo setup, mines monoblock, 805`s are cheap and easy to source nos or Chinese, i suggest geting nos RCA or Amprex or National Union, GE.
Sounds great and has good SET power.

http://www.diyaudio.com/forums/attac...amp=1106011421

And for a great 845 Stereo kit, $1064us, great price, this is the best i`ve seen and very good quality.

http://www.diyfidelity.com.au/produc...products_id=29

Cheers George
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Old 8th February 2005, 11:04 PM   #6
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Let's say that there are no limites !

It can go more than 1000 V ( a french builder provide that kind of power supply!).
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Old 9th February 2005, 12:17 AM   #7
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Then you need to talk to Nick Sheldon.

Tim
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Old 9th February 2005, 06:12 AM   #8
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Ah, yes. Nick Sheldon (and friends) built this - a 3kW single ended valve amp!

Simon Busbridge built an 833A amp running at a B+ of 2,400V for an output of 100W. The valve dissipates 350W on the anode and 100W in the filament! They look like about the size of a small refrigerator and needed wheels to be moved. Sadly details (and some very nice pictures) seem to have disappeared - the webpage was here but it doesn't seem to be working any more.

Certainly a nice contrast to those 1500mW little baby triode 'amps'

Gee, this might be a worthy rival to the Pass Monster thread!
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Old 9th February 2005, 06:38 AM   #9
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Yes and who is Nick Sheldon?
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Old 9th February 2005, 07:00 AM   #10
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I can't understand why would you like to build a more than 10W SE amp!
There are so many disadvantages.Think about the iron and I mean the OPT.I believe that SE OPTs bigger than 10W are worse than OPTs smaller than 10W.And the main reason for this is the gap.
With today speakers that are 90dB or more you don't need more than 10W. Give all the money for a simple SE amp. It will be better than a more complicated one.
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