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17th February 2006, 09:27 AM
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#2 | |
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diyAudio Member
Join Date: Mar 2004
Location: Krakow
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Re: is this any good?
Quote:
who knows? missed resistor from T1 collector to neg power supp?
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regards, Pawel |
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17th February 2006, 09:38 AM
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#3 | |
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diyAudio Member
Join Date: Feb 2001
Location: where fair living
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no miss , R7 is it.
Quote:
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Maybe i should not be lazy again |
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17th February 2006, 09:57 AM
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#4 |
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Did it Himself
diyAudio Member
Join Date: Nov 2003
Location: Gloucestershire, England, UK
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That schematic is a direct scan out of the Velleman K8060 power amplifier module leaflet. It's not a bad performer.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more |
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17th February 2006, 10:04 AM
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#5 |
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diyAudio Member
Join Date: Feb 2001
Location: where fair living
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hi richie00boy
i am very interested with you avatar pic. but it is too small
can you give me detail info about you sub speaker system?
__________________
Maybe i should not be lazy again |
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17th February 2006, 10:10 AM
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#6 | |
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diyAudio Member
Join Date: Mar 2004
Location: Krakow
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Re: no miss , R7 is it.
Quote:
Was I blind? yes, the connection is OK!
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regards, Pawel |
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17th February 2006, 11:06 AM
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#7 |
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diyAudio Member
Join Date: Feb 2005
Location: torino
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Dear Sirs,
I am very interested in this kit from Velleman. Extremely simple but nice. I wonder if powering the first voltage gain stages with a +/-40 V regulated supply ( isolating in this way them from the output stage) could be beneficial. Opinions would be very much appreciated. Kind regards, beppe |
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17th February 2006, 11:08 AM
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#8 |
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diyAudio Member
Join Date: Oct 2004
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It's almost the direct copy of an old Elektor circut.
http://www.tar.hu/kapcsrajzok/hfver/120W-os_1.gif http://www.tar.hu/kapcsrajzok/hfver/120W-os_2.gif http://www.tar.hu/kapcsrajzok/hfver/120W-os_3.gif http://www.tar.hu/kapcsrajzok/hfver/120W-os_4.gif http://www.tar.hu/kapcsrajzok/hfver/...tesi_rajza.jpg http://www.tar.hu/kapcsrajzok/hfver/...tesi_rajza.jpg Unreasonable, unassuming design. Sounds terribly. Sorry folks, for me this is the truth about this amp... |
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17th February 2006, 11:15 AM
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#9 | |
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diyAudio Member
Join Date: Feb 2005
Location: torino
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Quote:
May I ask what is your choice about power amp circuits? Could you recommend me anything equally simple but better sounding ? Thank you very much indeed. Kind regards, beppe |
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17th February 2006, 12:28 PM
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#10 | |
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Did it Himself
diyAudio Member
Join Date: Nov 2003
Location: Gloucestershire, England, UK
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Re: hi richie00boy
Quote:
The sub in my avatar is the first prototype of my own designed and built extreme high quality sub. It uses a UK made drive unit from www.shadowworks.co.uk and class-d amplification, plus control, filter and EQ circuitry of my own. The box is sealed. It is a fairly complex project, but I am hoping to put the plans on my website and maybe offer boards or kits. A fully assembled version will be available from www.8ballaudio.com for a full system of stunning looks and high sound quality.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more |
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