S scale 1:64 block signals with operating LEDs.

 S scale block signals from NJ International

NJI 4314 B&O color position signal, 1:64 S scale Brass construction 7 LEDs - 2 red, 2 yellow, 2 green, 1 white marker Common anode (+) wiring Height: 4.5 inches (11.5 cm) Current limiting resistors are attached This B&O signal can be operated by a TS2 block signal circuit.

 S scale dwarf signals from Custom Signal Systems

Custom Signals S scale 3-color searchlight dwarf signal • Single head • Tri-color LED, green, yellow, red • Common anode (+) wiring • Separate wire for each color for simple control • Detailed casting, height: 0.55 inch (14mm) • Weathered silver with black visor • Current limiting resistor is attached to the common lead This 3-color signal can be operated by a TS2 or TS3 train signal circuit.
Custom Signals S scale 3-color searchlight dwarf signal • Double head • Tri-color LED, green, yellow, red • Common anode (+) wiring • Separate wire for each color for simple control • Detailed casting, height: 0.8 inch (21mm) • Weathered silver with black visor • Current limiting resistor is attached to each common lead This 3-color signal can be operated by a TS3 or TS5 train signal circuit.

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