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R-22 engine and Rotor tach wireing-need help

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a while back I bought a panel on E-bay for a R-22 ,plan was to use it in a Home built helicopter, when I finely got around to messing with the Panel I learned the engine/Rotor tach had way more wires then I expected.


does any one have a wiring diagram or can tell me which wires go to the engine sender and the Rotor sender?


going to try and update the engine and Rotor tach in my Helicom Commuter H-1B helicopter


right now it has separate electric tachs for engine and rotors that are like old style boat tachs running off 1:1 electric senders.



any help would be great.

Thanks in advance.

Edited by Dreamin of a Commuter 2B
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