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Old 29th June 2003, 03:29 PM   #1
Ford_V6 is offline Ford_V6  Romania
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Default What amp for this toroid ??

Hy !

I have a 630 W toroidal transformer that gives out 32-0-32 V.

What amp can i build to get about 80 W in 8 ohm load ?
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Old 29th June 2003, 04:03 PM   #2
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Elliot's P3a

http://sound.westhost.com/project3a.htm
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Old 29th June 2003, 04:08 PM   #3
joensd is offline joensd  Germany
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I built a Crescendo-ME amplifier with almost the same transformer (600VA 2*35V).
Its the newest version of the original Crescendo design from Elektor. It includes protection circuitry.
If you go for that one Id recommend the PCBs from Elektor as you need 2 PCBs (amp+protection) per channel and those are quite small.

But there many, many more amplifier circuits you could build with your trannie.

Crescendo schematics

Jens
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Old 5th July 2003, 10:53 PM   #4
GST is offline GST  Canada
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I built the CF OPS (Complementary Feedback Output Stage) Amplifier (figure 11-4, p337) from Randy Slones "High-Power Audio Amplifier Construction Manual". This is the ideal Voltage for this amp. I don't have mine working yet, but I have heard good things in this forum.
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