Pontus HåBe Holmberg
Newbie level 1
Hi!
I'm trying to create a circuit that will read the rpm from a engine via the ignition coil. So i need a LM2907 to convert the frequency from the coil i have around the ignition cable.
I found this schematic, but i don't understand what component is needed for K1 K2. It only says K1x03 (for K1) and K1x02 (for K2).
Here is the schematic:
Thanks in advance
I'm trying to create a circuit that will read the rpm from a engine via the ignition coil. So i need a LM2907 to convert the frequency from the coil i have around the ignition cable.
I found this schematic, but i don't understand what component is needed for K1 K2. It only says K1x03 (for K1) and K1x02 (for K2).
Here is the schematic:
Thanks in advance