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GME CD-300 Capacitance Substitution Decade Box, 5 Decades Range, 100pF to 11.111 μF, Designed in The USA: Amazon.com: Industrial & Scientific
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EISCO - 4 Decade Resistance Box, Variable from 0-11,110 Ohms, 0.5W Resistors (0.5555W Theoretical Max): Amazon.com: Industrial & Scientific
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Amazon.com: Capacitance Decade Box, Five Decades, 100 pF to 11uF (100 pF per step, 5% caps, 50V) : Industrial & Scientific
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Amazon.com: Capacitance Decade Box, Five Decades, 100 pF to 11uF (100 pF per step, 5% caps, 50V) : Industrial & Scientific
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