Stewart Warner tach question

[383MovingViolation]

I have a question about this SW tach that I'm sure somebody knows. Does it need any other sending unit other than the one that's already on the back of the tach? I don't see a model number but there is a number 810750 on the back. I just don't want to wire this up and burn something out. Thanks for any help. 383MV

 

[ply64post]

tach

383

I have a tach that is the same face as your only 8,000 rpm and the hookup
will be just wiring you see.The back of my tach is identical to yours.
Your light,grd.and the distributor side of the coil.No other sending units.

Jeff:sFl_america2: