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47silver's Avatar
 
Join Date: Sep 2002
Location: Pittsburgh
Posts: 3,042
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Mfi speed transducer

Made a test rig for the transducer but i do not know if the trigger connection goes to ground or to +12.
My thinking is it should go to ground as that is what the points do to charge the coil, but not sure. Warren’s drawing does not show where to connect the trigger.

Old 03-31-2023, 06:39 AM
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Originally Posted by 47silver View Post
Made a test rig for the transducer but i do not know if the trigger connection goes to ground or to +12.
My thinking is it should go to ground as that is what the points do to charge the coil, but not sure. Warren’s drawing does not show where to connect the trigger.
The signal is a pull-to-ground then open.
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Dave
Old 03-31-2023, 08:28 AM
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Thank you
quite a circuit, very interesting.

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1975 911S Targa
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Old 03-31-2023, 09:32 AM
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