Marked: on unit: "EI Co. / New York / Patented"; on box: "Electro / Rheostat Regular and Switch / Capacity 2 Amperes continuously / 4 Amperes for short duration / Guaranteed 10 ohms." Wooden based ...
Originally for use in commercial trucks, a low-cost dc lamp dimmer (Figure 1) can control more than 100W of incandescent panel lighting and replaces a high-power rheostat, whose heating darkens the ...
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