Posted on May 31, 2015 in Bad Circuits

LED logic-level indicators
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Posted on May 31, 2015 in Bad Circuits

wired-OR
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Posted on May 28, 2015 in Bad Circuits

added series resistor minimizes noise by matching amplifier’s best NF
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Posted on May 28, 2015 in Bad Circuits

VCVS bandpass filter
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Posted on May 28, 2015 in Bad Circuits

delayed-pulse generator
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Posted on May 28, 2015 in Bad Circuits

voltage-controlled 555 oscillator
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