Train Bell, Strobe Light or Beacon Pulser

Railroad Bell Sound Effects Circuit

Want to add real bell sounds to your model railroad train crossings? This circuit pulses an ordinary doorbell to produce a real metal 'ding-ding-ding' sound. You choose the bell from your local builders supply or hardware store that is most to your liking. The MRB2 Pulser will ring it at the rate and intensity you set.

Flashing Beacon or Strobe Light Circuit

Antenna towers, smoke stacks, aircraft beacons, lighthouses and other tall structures are equipped with bright strobe lights as a warning to ships and aircraft. You can produce the same effect on your tall model structures with LEDs or incandescent bulbs and the MRB2 Pulser. Adjustable flash rate and duration, the MRB2 has two selectable modes:

• Bell/Strobe for quick, brief flashes
• Soft Beacon for gradual fading on/off effect

(LEDs not included).

Installation instructions

Pulses a DC load (bell, LED lights, etc.) up to 1.2 amps Always use a series resistor with LEDs (not included) Pulse rate adjustable from 4 per second to once every 4 seconds (Bell/Strobe mode) or 2 per second to once every 8 seconds (SoftBeacon mode) Adjustable pulse duration/intensity Remote on/off control Easy connection to MRX2 Crossing Signal Controller May also be controlled by an external relay, transistor switch or open collector logic gate Compact size: 1.7 x 1.4 x 0.65 in. Power required: 8 to 15 volts AC or DC, at least 500 milliamps continuous current (will vary depending on the type of bell or number of lamps) PS906 power adapter works well for LEDs and common low voltage (AC or DC) door bells Bell and lights not included

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