Circuitron
SD-2 3-Position Semaphore Driver

Circuitron
SD-2 3-Position Semaphore Driver

$29.95
HO
Scale
  • Walthers Part # 800-5520
    p. 656 2019 HO Scale Reference Book p. 125 2016 N&Z Scale Reference Book

Product Information

Use with the Tortoise Switch Machine and an upper or lower quadrant semaphore-style signal. Includes al the logic circuitry to drive the signal to all three positions. Works with BD-1 or BD-2 Block Occupancy Detectors. A minimum of two blocks must have detectors installed for the SD02 to indicate all three positions. Requires 10-18V DC power.