Gil and Jan...thanks for the response...I should have no trouble finding LED I need if 12V works at lower voltage. Even if a total fail, I see them sold in pairs for the grand sum of 0.99 USD...
As an aside, I picked up from a Ron Walters YouTube video that he prefers to run these little engines on 3 volts vs. 4.5 and substitutes a dummy (AA size) for one of the normal working AA batteries. I did some browsing on eBay and found a seller offering the dummy AA battery for 0.99 USD with free shipping. How anyone can make money doing it that cheaply I don't know, would seem materials and postage would exceed that! I ordered one and will try running my Hit/Miss on the lower voltage...not sure why, but if it saves the Hall Effect Sensor or the little ignition box inside the engine base, it's worth it.
Rog
I am not convinced 3 volts is needed for these. It is true that the earlier blue anodized engines had a gold anodized ignition module that was quite prone to failure with voltage too high. Even that one when wired and grounded properly will last a long time. I have one a year and a half old with quite a few hours on it and it still works fine and won't heat up even after a full hour of running with 3 AA batteries. The new set up is still considerably better on the silver engines.
Has anyone had a newer module as appears in the silver engines fail due to using 4.5 volts?
I have not heard of this and the boxes do not get hot with 3 AA batteries. In addition, your batteries weaken beyond what will make a good spark much more quickly with 3 volts from 2 AA batteries.
Gil
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