sansoneservices
Filing Flight Plan
I installed a SIM magneto on a plane with the digital tach from Electronics International. The stand-alone tach model R-1 would not function with the electronic mag. Rather than buy an expensive signal adapter I decided to renew the electronics geek living dormant inside me. End of story: a resistor inline between the "p" lead post on the magneto (ignition) switch, and the digital tach cured the problem (18k ohms)
