Single-pole, double-throw momentary action for control of Atlas or other twin-coil switching machines.

Features:

A double-pole, double-throw relay with actuating mechanism driven by a momentary-power, twin coil solenoid. (A solenoid is a cylindrical coil of insulated wire in which an iron core is made to move back and forth by a flow of electric current.) With just a few simple connections, this small device, which may be mounted anywhere, can:

• Power the frogs on Atlas' Mark 3 & Code 83 #6 turnouts
• Control trackside signal lamps to show turnout point positions
• Operate control panel lamps to show settings of remotely located turnouts (switches)
• Provide selective track siding control. Sidings are powered only when points are aligned for siding. Siding remains dead when points are set for the mainline.
• Control X-sections automatically. This very useful track arrangement is thoroughly discussed in Atlas' Complete Wiring Book.

A device to turn electric power on or off to track section or accessories. Has three SPST on-off switches in parallel. Can be coupled together in any number.

A component consisting of two double-pole, double-throw reversing switches wired in parallel. Useful for reversing section and turntable control on single-cab layouts, plus many other applications.

This device enables the operation and control of two trains at the same time. Has four single-pole, double-throw switches to provide two-cab operation for four blocks. May be ganged together in any number to control additional blocks without inter-switch wiring. Can be used as area selectors for four-cab operation. Couples with #220 Controller.

This control provides the simplest way to wire and control tricky reverse loops, wyes and turntables. Has reversing switches for two mainline cabs plus a switch, selectable by either cab, for directional control on reversing loops, etc. Couples with #215 Selectors.