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13th April 2005, 10:19 PM
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#1 |
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diyAudio Member
Join Date: Sep 2004
Location: Göteborg
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Supersymmetry Circlotron
Here is a small supersymmetry(???)-circlotron preamp circuit i have been exprimenting with. Its easy to scale up to a poweramp.
The outputs are where minus attaches at the IRF9510 drains. No capacitors are needed 
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We live in a horizontal world, why use vertical topologies??? |
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14th April 2005, 09:23 PM
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#2 |
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The one and only
Join Date: Mar 2001
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Looks very clever to me.
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15th April 2005, 04:49 AM
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#3 | |
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diyAudio Member
Join Date: Sep 2004
Location: Göteborg
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Quote:
I have a little 2 x 15 watt permutation of this amp att home that I have been listening to for about half a year or so, it sounds wonderfull. And Thank you Mr Pass for the "X" typ of circuits! Its a brilliant invention!
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We live in a horizontal world, why use vertical topologies??? |
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15th April 2005, 05:00 AM
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#4 |
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diyAudio Member
Join Date: Sep 2004
Location: Göteborg
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In an poweramp with this topology you dont have to use batteries on the inputs.
I use batteries to be able to use higher values in the feedback, but still have the amp DC coupled. But a power amp can easely drive 47 ohm feedback resistors, and that is what the 2SK170 like on their sourcepins to give 3-5 mA current.
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We live in a horizontal world, why use vertical topologies??? |
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15th April 2005, 07:16 AM
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#5 | |
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diyAudio Member
Join Date: Sep 2002
Location: near Milano , Italy
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Quote:
 Cheers andrea
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I don't believe in audiophile components - except when I can get them at frugal-phile(tm) prices
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15th April 2005, 04:04 PM
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#6 |
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diyAudio Member
Join Date: Sep 2004
Location: Göteborg
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 Its a ˝ year old design and I built it before I started to implement X into my circuits. I have tried X feedback but I dont want to rebuil it and I dont want alligatorclips all over my amp. So I ripped it out. It sounded very nice though.
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We live in a horizontal world, why use vertical topologies??? |
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18th April 2005, 06:34 AM
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#7 |
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diyAudio Member
Join Date: Sep 2004
Location: Göteborg
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 This would be a "verical" arrangement of that amp. I sketched down this idea a couple of years ago, but I have never tried it. I should work.
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