MSefi.com read only forum (Jan.15,2018)

Thanks.
Yes it's a 6200/6A. My tacho won't operate using that output so it's spare. Running the MS from that is nice and convenient.

My 6200 MSD ignition unit has a tacho signal output. 12 volt square wave signal with a 20% duty cycle. (whatever that means) Can I use that as the signal for the MS?