Re: Johnson RDE-17R?

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November 14, 2016 at 7:06 pm #47458
Anonymous

    I’d be interested in knowing the resistance of a 6V solenoid. The 12V solenoid on my 1959 18HP is 2.2 ohms (draws 5.5A).

    These pages:
    http://www.jalopyjournal.com/forum/thre … er.960278/
    http://www.oldengine.org/unfaq/six12.htm

    Say the Delco U1745 is a 1.5 ohm resistor rated at 4 Amps.

    If the "ballast" and the choke have the same resistance, they will each see 6V (the ballast will be acting as a 24 Watt heater).

    And if the combined load is 3 ohms (1.5 for the choke, 1.5 for the ballast), the circuit will draw (and the choke and ballast will each see) 4A (the rating for the ballast).