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Author Topic: Yet another M90 Microcosm Hit & Miss thread  (Read 8442 times)

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Re: Yet another M90 Microcosm Hit & Miss thread
« Reply #15 on: May 23, 2019, 06:25:18 pm »
I've had a few runs now with a .308 case stuck in the middle of my battery box, thus reducing voltage from the original three AA batteries at about 4.5 volts, down to around 3 volts with only the two AA batteries.

Haven't noticed any difference in the engines operations at all, though I'm far from having quantified any of the parameters that might be affected.

I picked up same advice from a Ron Walters video...reduce voltage from 4.5>3.0 volts by removing one battery and placing a dummy in it's place.  Before I saw Daniel's suggestion of using an empty .308 shell casing, I found a very reasonable "dummy" cell sold on Amazon for just 99 cents US.  AND that included free shipping from California.  It took a week or so, but today my dummy AA cell arrived in good shape and I noticed seller paid $4.06 to ship it.  Tough way to make a buck !!!!!

Rog
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