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12th September 2010, 05:40 PM
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#1 |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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Studio Reference Amplifier
APEX SR100 Studio Ref Amp
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http://www.facebook.com/APEXaudio.MileSlakovic Last edited by apexaudio; 12th September 2010 at 05:48 PM. |
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12th September 2010, 05:54 PM
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#3 | |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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:
Quote:
 Regards
__________________
http://www.facebook.com/APEXaudio.MileSlakovic |
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12th September 2010, 11:04 PM
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#4 |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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I use PCB from old DC Servo Mosfet Amp for test this circuit, after basic tests amp work on my desk without case on +/-45V DC rail voltage. Sound is without any compromise, and musicans like it.
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http://www.facebook.com/APEXaudio.MileSlakovic |
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13th September 2010, 11:23 AM
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#5 |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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Circuit can work with IRFP240/IRFP9240 (R30-10k, without C10,C11-100pF). Zobel network with 10R, 22nF and 4R7,10uH is on PSU pcb. MJE340/MJE350 must have heatsink (10mA), amp can work with +/-90V DC rail voltage with more outputs (R20,R21,R22,R23-100k instead 47k, R24-12k/1W instead 6k8).
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http://www.facebook.com/APEXaudio.MileSlakovic Last edited by apexaudio; 13th September 2010 at 11:27 AM. |
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14th September 2010, 10:24 PM
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#6 |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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Wiyh this PSU amp rail voltage can be set and will be stabilized. 2SA1943/2SC5200 must have heatsink.
__________________
http://www.facebook.com/APEXaudio.MileSlakovic |
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16th September 2010, 09:06 AM
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#7 |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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This is my amp from 80', modular drivers and protect pcb only caps is too big to be fit on amplifier motherboard. I considering to use this design for 'Studio Reference Amp'.
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http://www.facebook.com/APEXaudio.MileSlakovic |
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16th September 2010, 11:16 AM
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#9 | |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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Quote:
Regards
__________________
http://www.facebook.com/APEXaudio.MileSlakovic |
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16th September 2010, 12:17 PM
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#10 |
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diyAudio Member
Join Date: Feb 2010
Location: Serbia
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Output voltage with this PSU can be set from 35V to 65V 5A with single pair 2SA1943/2SC5200.
__________________
http://www.facebook.com/APEXaudio.MileSlakovic |
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