18 A
ANALYTICAL
CHEMISTRY
Compare! POWERSTAT
POWERSTAT Variable Transformer TYPE
10
ACTUAL SIZE
. . . with α rheostat or other resistance type controls. You will find POWER STAT type 10 the ideal source of vari able a-c voltage control of 50-100-150 watt loads. •
EFFICIENCY
•
SPACE REQUIREMENT
POWERSTAT type 10 is rated: INPUT:
120 Volts, 6 0 Cycles, 1 Phase
OUTPUT:
0-120 Volts, 0-132 Volts, 1.25 Amperes, 1 5 0 / 1 6 5 VoltAmperes POWERSTAT type 10 weighs only 1 POUND, 13 OUNCES.
of type 10 is high . . . does not control by dissipating power in the wasteful form of heat as does a resistance type control. of type 10 is only 2%, by 3V& inches. Not only is it compact but since
it does not produce heat there is no ventilation problem. • •
CONSTRUCTION of type 10 is rugged for long life and dependable service. of type 10 to any load within its rating is possible without tailoring as is ADAPTABILITY necessary with a resistance type control.
•
RATING
of type 10 is conservative with the rated output current available at any brush setting.
•
MOUNTING
of type 10 is simple by means of a single hole in the panel. It is locked in position by a keying arrangement.
•
OPERATION
of type 10 is smooth, stepless and silent.
•
PRICE
of type 10 is low . . . comparable to any other type of a-c voltage control apparatus of equal capacity and characteristics.
A comparison of POWERSTAT type 10 with a rheostat or other resistance type controls re veals that it is the logical answer to any vari a b l e a-c voltage control problem involving loads up to 1 50 watts. Additional information on POWER STAT type 10 is available by writing 1004 Mae Avenue, Bristol, Conn.
POWERSTAT type 1 0 is a small, compact autotransformer of toroidal core design with a movable brush-tap. Rotation of the tap de livers any output voltage from zero to, or above, line voltage. It is tapped to allow compensation for a 10 per cent drop in line voltage.
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