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Wiring for smiths tach (73 ES) 1800

posted by  Bob Wennerstrom on  Wed Oct 29 13:34 CST 2003
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Someone wants to buy a tach I have for a '73 ES. It's the black Smiths one. I need to test it though. We've figured out that the round male and female terminals go to the coil and distributor respectively but there's a 1/4" male spade terminal that is perplexing me. Does this tach need a 12V source to work and would that 1/4" terminal be for +12V. Where would I put 12V- then? to the frame of the tach?

Any pointers would be appreciated.
--
Bob W.
16 Volvos ('58-'91)
445-544-122-240-740
Four turbos






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New Wiring for smiths tach (73 ES) [1800]
posted by  Bob Wennerstrom subscriber  on Wed Oct 29 13:34 CST 2003 >


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