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decoder capability: smoke generator

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  • decoder capability: smoke generator

    OK I did finally get the shell of my MTH H8 off and might try to preserve the smoke unit because I can add a speaker behind it. Is it possible to drive the smoke generator with anything less than a Loksound 5 L decoder like a 5 DCC or micro. The MTH generator is a 4 wire set up without a temp probe. The heater and fan resistances are 13 and 16 ohms respectively so at 14V the unit would draw about 1 amp each to the heater and fan. The aux outputs of the Loksound 5 are rated at .25A and a total draw of 1.5A so while in total I think the decoder could handle it but not an individual output. Would it be practical to amplify the current from the aux outputs (transistor or relay circuit)? Or I could jut rip the smoke unit out and be done with it. I suppose I could use the loksound 5 L and deal with the maze of wires to the loco but it otherwise seems like overkill
    - Your thoughts? Thanks,
    bob

  • #2
    Bob,

    Nice locomotive. It looks like you've already realized that driving the smoke generator far exceeds the output of the decoder, and would turn the decoder into a 'one time smoke generator'. You might take a look at a MOSFET Solid State relay that to handle that load. I've checked the C247S device on this page. https://www.newark.com/c/switches-re...d-state-relays. Look over the data sheet for heatsink, and driving requirements etc. NO GUARANTEE from me, but check it out.

    Jim
    Take the red pill

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    • #3
      Jim -- Thanks for the input and the link -- Bob

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      • #4
        Let us know if that solves the problem.

        Thanks - Jim
        Take the red pill

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