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17th October 2004, 03:29 AM
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#1 |
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diyAudio Member
Join Date: Oct 2004
Location: utah
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pass 20 watt class a
has anyone built the 20 watt singe ended amp Nelson Pass designed abot 1977.
I wondering if c1 the input coupling cap is really supposed to be 1000uf. After a look thru my parts collection I find that I have nearly every thing to build one |
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17th October 2004, 09:38 AM
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#2 |
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diyAudio Member
Join Date: Dec 2000
Location: Önnarp, Söderslätt
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Hi amp-guy.
I have, and yes, according to the original article it is 1000uF. I did enjoyed my 20W ClassA right until my voltageregulator fried not only itself, but the ampboards as well  My ClassA amp Good luck building it, but don't take lightly on the Pass' warning: "For this amplifier, there is no such thing as too much heat sinking for the output stage. Extravagance in this area is no vice, and good ventilation is similarly very important."
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Regards Hoffmeyer ;0) |
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