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26th September 2007, 10:31 AM
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#1 |
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diyAudio Member
Join Date: Aug 2004
Location: Padova
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"MY" Aleph-X finished
First Of All
Thank you to Mr. Pass, Mr. Rollins and my Friend Paolo that introduce me to this wonderful forum ..I would say thanks too all people that “work” for this website. Ok. After 1.5 year at the end I finished my two monoblocks Aleph-X (80Watt). I used a CLCLC (40mF-2mH- 50mF-2mF-90mF) per rail with a 21.5V (20mV p-p ripple). The PCB are from Caromondimonio. I used 12 matched mosfet (irfp240) for monoblock, in total I select 24 mosfet from a stock of 75. I used 4k75 for the McMillan Resistor, and I have a Differential and Absolute off-set of 10-20mV after 1 hour. And now same photo… P.S:Sorry for my English Paolo |
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26th September 2007, 11:04 AM
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#7 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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__________________
my Papa is smarter than your Nelson ! tnx to  clean  thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb
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26th September 2007, 11:53 AM
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#10 |
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diyAudio Member
Join Date: Aug 2004
Location: Padova
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Thanks Hugo,
about the temperature here you can see the temperature vs time. The rail voltage is +- 21.5 and I set the voltage on the source resistor (R=0.49) at 0.54V so the total current flowing (from positive rail to negative rail) is 6.7 A, for a total dissipation of 290W (+ dissipation on the bridge). Each monoblock is 60 kg. Paolo |
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