The “MC” is a versatile single section tuning capacitor designed to give the equipment engineer a choice of mountings, connections and capacity characteristics. The threaded brass front bearing and tapped aluminum end brackets permit panel or base mounting. “MC-S” capacitors have a straight line capacity characteristic. “MC-M” units are wide-spaced for high voltages. Hammarlund “MC” capacitors, except for “MCA” types, have silver plated phosphor bronze wiping contact, silicone-treated steatite insulation, soldered nickel-plated brass rotors at stators, rotor shaft support on bearings at both front and rear of capacitor.
The “MCD” is a split-stator panel-mounted capacitor with all the “MC” features. Stators have terminals on both sides. Stators on a single-space capacitors are separated by a shield. Wide-spaced units have no shield. Multi-section capacitors can be designed for special applications.
A rotor stop is available on “MC” capacitors on special order.
Straight line or “Midline” capacity characteristic. Single-spaced types have 0.0245″ nominal air gap and are tested at 100 V.R.M.S., 60 hertz. Wide-spaced (“X”) types have 0.0715″ nominal air gap and are tested at 1750 V. R.M.S., 60 hertz.