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Our current range of component substitution equipment:


 Resistance Subsitution Box
     11 resistor values switchable from 100W to 10MW, plus an OFF position.


 Capacitance Substitution Box
     12 capacitor values from 100pF to 0.47mF.


 Decade Resistance Box
     4 decade ranges, total 0 to 9999W, with a resolution of 1W.