Simpson 2 Series - General Description

SECTION I
GENERAL DESCRIPTION
The Model 270 Series 2 is a rugged, accurate, compact,
easy to operate instrument. It is used to measure electrical
characteristics of circuits and circuit components. It indi-
cates quantity measurements for D.C. and A.C. voltages,
D.C. currents, resistances, decibels and output voltages.
The Model 270 Series 2 is an improved version of the de-
pendable 270. It incorporates a completely new, rugged,
self-shielding, high torque, high flux annular meter move-
ment with mirrored dial plus protective diode. The annular
movement in addition to being self-shielded, is also
equipped with spring backed jewel screws. This type of
jewel allows the instrument to withstand more abuse due to
shock and vibration without increasing the frictional error.
The Model 270 Series 2 also incorporates a special calibra-
tion circuit to increase its accuracy. This allows us to
provide you with a more accurate unit to begin with. Should
the unit get out of adjustment it facilitates its return to the
original factory accuracy.
The Model 270 Series 2 has predictable temperature response
on all ranges and uses gold bonded germanium diodes on
the A.C. ranges to provide higher precision and stability
over a wide temperature range.
The Model 270 Series 2 has been designed to utilize the
most modern components and circuit techniques. It is manu-
factured by skilled workmen, using high quality materials,
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