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Old 17th May 2010, 08:18 AM   #1
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Default Scalar Audio Power Amplifier

Scalar Audio : SCA-150

Balanced / Unbalance Input, Full current/temp/clipping protection.
150W/CH : 8 Ohms

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Anadigit
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Old 17th May 2010, 09:18 AM   #2
AndrewT is online now AndrewT  Scotland
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VAS directly feeding a 3pair BJT output stage?
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Old 17th May 2010, 09:49 AM   #3
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Default Vas

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VAS directly feeding a 3pair BJT output stage?

No, by Q10, Q11
Real schematic used 4 pairs output transistor Q12-Q19 !

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Anadigit
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Old 17th May 2010, 12:42 PM   #4
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Default PCBs

Top overlay and Bottom layer.
I used Protel 99 SE to design them, very usefull !

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Anadigit
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Old 17th May 2010, 01:11 PM   #5
AndrewT is online now AndrewT  Scotland
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Oh!
My mistake.
I misread that as a 3pair output stage.
Sorry.
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