Using bridge rectifiers with lenz decoders

Discussion in 'DCC & Electronics' started by GN.2-6-8-0, Aug 24, 2007.

  1. GN.2-6-8-0

    GN.2-6-8-0 Member

    I am using a Lenz Gold decoder in a h.o steamer and would like to retain my 1.5 volt headlight bulb, wondering if i would i be able to use a bridge rectifier in this application. any input appreciated.
  2. caellis

    caellis Member

    It would be easier and cheaper to use a resistor,

    As the decoder puts out a constant 12 volts dc, use Ohms law to calculate the value of a RESISTOR to place in series with the 1.5 volt lamp.

    You will need to know the current draw of the lamp. Then use the formula R=E/I, where R=Resistor required, E= Voltage drop required (10.5) and I= Current draw of the lamp.

    Wattage rating of the resistor would be Current times Voltage Times 2 for safety.
  3. woodone

    woodone Member

    Would take a lots less room too. As a plus you have only two connections to make. Just splice in the resistor.:thumb:

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