Sugden A21a power amp schematics? - diyAudio
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Old 13th August 2001, 07:00 PM   #1
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i figured, building a Sugden A21a power amp for biamping might be nice, it should not be to difficult. but i would need the circut design since none was to be found in the small instruction leaflet, and since i dare not open my precious amp (very expensive for me indeed ) if anyone has them i would be very glad to have a look...

thanks alot
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Old 19th November 2006, 08:19 PM   #2
gni is offline gni  United States
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Default Reverse engineering

Older than five years. . .open it up.
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Old 11th December 2007, 01:35 PM   #3
leonidp is offline leonidp  Israel
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Looking for the schema - as I want to overcome the pre-stage issues and connect directly to the volume potentiometer and then to power input, byt the schema reverse engineering goes hard - need to open too much bolts in the amp. Can somebody post the schema?
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Old 11th December 2007, 02:12 PM   #4
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I did open mine up, the power amp atleast, wasn't too much there to reverse-engineer it. Unfortunately, i don't still have it.
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Old 11th December 2007, 07:12 PM   #5
leonidp is offline leonidp  Israel
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What I am mostly interested in - is not power section, but the pre-amp...
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