Circuitron 800-6000 The Tortoise Switch Machine HO Structures The AR-1 uses tiny Opto-Sensors

The AR-1 uses tiny Opto-Sensors mounted between the rails where they are shaded from ambient room light by a piece of rolling stock

Suggested tools for building: hobby knife

and other Diesel Locomotives with the DH165L0 DCC Decoder

ready-to-mount coal bin

Circuitron 800-6000 The Tortoise Switch Machine HO Structures The AR-1 uses tiny Opto-SensorsCircuitron 800 6000 The Tortoise Switch Machine Extremely Simple Under Layout Mounting and all Linkage is included. Dimensions: 2 x 2 x 3 1 4 FEATURES: ADVANCED TECHNOLOGY DESIGN granted Circuitron a US Patent! Lowest Current Drain Switch Machine Available (4 ma. during operation, 15 16 ma. at stall). Motor stalls at each end of throwNo Cutoff Contacts Necessary. Precision Engineered Gear Drive Mechanism (superior to screw drive machines). Enclosed