Posted on May 27, 2015 in Bad Circuits

triangle-wave generator
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Posted on May 27, 2015 in Bad Circuits

selectable-gain dc amplifier
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Posted on May 27, 2015 in Bad Circuits

positive-rail booster
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Posted on May 27, 2015 in Bad Circuits

positive +15V regulator
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Posted on May 27, 2015 in Bad Circuits

op-amp current source – 2 (grounded load)
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Posted on May 27, 2015 in Bad Circuits

op-amp current source – 1
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