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Opto isolator for tachometer Iso : Single Channel Opto-Isolator Tachometer Module for Curtis 1238
I have a Curtis 1238SE controller. How do I use the Opto isolator in conjunction with the controllerto power the original tachometer in my car? I have a 1977 MG midget.
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Open Aug 31, 2026 - 04:28 PM
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Iso : Single Channel Opto-Isolator Tachometer Module for Curtis 1238
What you can expect with this single-channel Opto Isolator is its suitability with many of the Curtis 1238 tachometer sensing systems available today. An added value for this product is that it comes with both harness and module, as can be seen in the picture.
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