The Type 1531 Strobotac is a versatile flashing-light source that
is used to measure the speed of fast-moving objects or to produce the
optical effect of stopping or slowing down high-speed motion for purposes
of observation, analysis, or high-speed photography.
The Type 1531 is a portable electronic stroboscope that emits a
high-intensity, short-duration, flash of light. The instrument includes
a strobotron lamp and reflector, an electronic pulse generator that con -
trols the flashing rate, and a line-operated power supply. A built-in
adjusting the flashing -rate calibration,
The strobotron lamp and reflector assembly is mounted on a swivel
arm which can be pivoted 180°; the reflector can be turned 360°. Thus,
the operator can conveniently aim the light beam in almost any direction
while the instrument is hand-held or mounted in a stationary position. The
high -intensity light will adequately illuminate most moving objects - even
in relatively high ambient light - and it permits observation of distant
and difficult-to-illuminate objects, in otherwise inaccessible areas.
The Type 1531 Strobotac is housed in the General Radio Flip-Tilt
case, which protects the instrument when it is not in use and also serves
as a convenient support for the instrument during operation (see Figure
1 -1). When in use, the instrument can be held in the operator's hands.
placed on any convenient flat surface, mounted on a conventional tripod,
or supported by the neck strap provided.