novicepaul
New Member
Hi, can someone please help me, I've just brought a small tachometer for my car, but the tacho is for 4,6,3 cylinder cars and I have an 8 cylinder car. :roll:
What i need is a simple circuit to half the neg pluse from the coil so that I can run it in 4 cyl. mode, simple, yes I am , don't know where to start!
The tacho gets it's info from the neg side of the coil, which is grounded by the points in the distributer. My car's points open/close 4 times per revolution, the tacho is desigined to work with a ratio of 2 times per rev. How can I half the singal? I'm ok at following diagrams and making them work, but how they work is pure Magic to me! If any of you can steer me in the right direction I would be most greatful
Thanks Paul
What i need is a simple circuit to half the neg pluse from the coil so that I can run it in 4 cyl. mode, simple, yes I am , don't know where to start!
The tacho gets it's info from the neg side of the coil, which is grounded by the points in the distributer. My car's points open/close 4 times per revolution, the tacho is desigined to work with a ratio of 2 times per rev. How can I half the singal? I'm ok at following diagrams and making them work, but how they work is pure Magic to me! If any of you can steer me in the right direction I would be most greatful
Thanks Paul