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22nd December 2008, 11:00 PM
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#72 | |
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diyAudio Member
Join Date: Dec 2005
Location: the north
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The book is one Babani from 1991
by R. Penfold http://www.babanibooks.com/ Quote:
High-Power-Audio-Amplifier-Construction http://www.amazon.com/High-Power-Aud.../dp/0859342220
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lineup |
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23rd December 2008, 06:35 AM
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#73 |
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diyAudio Member
Join Date: Nov 2005
Location: Amanzimtoti - East Coast of South Africa
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Here is the real >300 watt into 4 ohm version I have never posted before.
I don't make money with it so it really does not matter. What I will say is that I have modified the CCS to that Alex has suggested and it works pretty nicely. Thanks Alex hope you don't mind. I have Gerbers of the PBCs if anyone is interested. I do not make or sell kits, PCBs, transformers or components, you may do with the circuit as you please. This one has been made for my friend running the local country club for New Year's eve party, eight channels - installed and cranked up and tested for 5 hours - not bad at all. I built mono blocks into my standard class A amp very simple case. Heat sinks are for our standard rectifier extrusions used in 500 Amp chargers @ 0.15w/deg C times 4. Amps are placed at each Altec Lansing 22 inch with horn mid and horn tweeter- Connections to source are mono via RF audio extenders, to the mixing console. These speakers and amps are permanent installations near the ceiling about 3.5 -4 meters high. The hall is about 60 x 40 m and running all is ******* deafening but he is expecting around 600 people which will change matters dramatically. You can change this amp, make it better or worse, do whatever you guys please - it is now in the public domain. Kindest Regards Nico Link is below: http://digisec.co.za/ras/music/300w%20MOSFET%20AMP.pdf |
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23rd December 2008, 03:01 PM
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#74 |
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diyAudio Member
Join Date: May 2006
 
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hi nico
what is the slewrate of the amp ? and damping factor |
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26th June 2011, 04:44 AM
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#78 |
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diyAudio Member
Join Date: Sep 2001
Location: Melbourne, Australia
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That would sound very nice indeed.... I like it, hats off Nico.....
Hugh |
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14th October 2011, 07:23 PM
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#80 |
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diyAudio Member
Join Date: Jan 2008
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Hi Nico,
Looks very interesting and I want to build the 100W amp with your upgrades. Will it be a problem to mail the PCB and the construction details to my mail ID or just share it here on the forum. Would like to have your response as I would like to restore my old Mini0Crescendo Amps which have failed ( After 20 Years -the olde trusty SK135/SJ49....was a great amp till it lasted) Regards Ravi Kumar Rao ravi.rao.kumar@gmail.com |
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