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Jim <br />I have just installed a Lenz DCC decoder and first used a 820ohm resistorin series for rach 1.5v bulb. However, as it wasn't bright enough I dropped it to 620ohm and now looks OK. I would try the 820ohm resistor at first and then if it is OK leave it. Otherwise go for the 620ohm and take the chance. The alternative would be to use either LEDs (560ohm) or optic fibres. <br />Regards John Parker Australia
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