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6th April 2003, 04:15 PM
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#11 |
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diyAudio Member
Join Date: Jan 2003
Location: Netherlands
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ULTI AMP components available
Hi all,
Is anybody interested in almost all components and PCB boards for the ULTI-AMP as mentioned above. It is available for anyone who is seriously interested in building his own audio power amp. Best regards Piersma |
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19th April 2003, 02:53 PM
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#15 |
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diyAudio Member
Join Date: Feb 2003
Location: Belgium
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Piersma
SSM2220 has a max Uce of 36V in the original circuit of the ultiamp the Vce voltage is about 39V, this wil kill the component after some months, and this is the voltage without input signal, than the voltage will even increase or decrease ( depending on the wave ) Maybe you could mesure it to be sure you don't destroy your nice creation ( SSM2210 has a max Uce of 40V ) Greetz Rudy ( building someting simular @ the moment  )
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19th April 2003, 09:25 PM
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#16 |
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diyAudio Member
Join Date: Jan 2003
Location: Netherlands
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SSM types
Hi Rudy,
I did not use SSM matched pairs in this amplifier. I used the 2N2918 and BFX36 matched pairs for the gain stages, according to the original schematic. If you modify the schematic it is possible to use SSM or MAT types, last mentioned pairs will make the sound better ! Just lower the railvoltage or use some zenerdiodes in the collectors. best regards Piersma |
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2nd June 2007, 08:17 PM
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#17 |
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diyAudio Member
Join Date: Jan 2003
Location: Netherlands
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Measurement results Ulti-Amp.
Hi,
Every now and then i still get questions en e-mails about the Elektor Ulti-Amp. Most of the questions can be answered by reading this tread. As promised to some of the people who have e-mailed me about the measurents i have done on this this amp, here are the results. |
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25th January 2010, 12:59 PM
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#20 |
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diyAudio Member
Join Date: Jun 2007
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PCB layout for Ulti amp
Anyone who has a pcb layout for above amp please share it with me.
email djkevincr@yahoo.com |
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