Circuitron FL-2 Alternating Flasher
FL-2 ALTERNATING FLASHER
The CIRCUITRON FL-2 is designed
to be controlled by the output
from one of our Grade Crossing
Detection circuits. The FL-2 may
also be easily wired for continuous
flashing or for manual control with
a panel switch, if desired. Only
one FL-2 is needed per road
crossing regardless of the number
of tracks (each with their own Detection
circuit) at the crossing. The FL-2 will power
incandescent lamps or Light Emitting Diodes
(with proper current limiting resistors). The
maximum load that may be applied to each
output is 250 ma. This is sufficient to flash 3
or 4 standard grain of wheat lamps or 10 - 15
LEDs per side. The current draw of grain of
wheat lamps varies widely from one
manufacturer to the next. Typically, they will
be in the 50-75 ma. per bulb range. If you are
not sure, check them with an ammeter. The
outputs of the FL-2 are not protected against
over-current or short circuit conditions, and
connecting too many lamps to the outputs will
likely damage the circuit. This is not covered
by warranty. The FL-2 is constructed on a
1.5” x 3” printed circuit board.