I saw on this site a circuit using 4029 and 4013 ICs to compare Port and Star engine RPM, but can not find it now
Can someone direct me to the circuit diagram please?
After some ideas here, if anyone can help. I have a twin engine/twin screw boat and I want a simple indicator to show when the engine revs are synchronised. The analogue tachos are not desparately accurate, and I know I have a higher fuel burn on one engine so I want to make sure they're...