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Old 10-08-2025, 09:35 PM
Frank Reiner Frank Reiner is offline
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Join Date: Feb 2011
Location: Modesto CA
Posts: 4,428
In the attached diagram the peak to peak voltage as shown in the upper left is about .5-.7 V for the VR sensor which is the subject of this inquiry. My question is, would it be possible to use an amplifier such as the KEMO M031M (the link will not copy), a 3.5W audio amplifier which is powered by 12 V, to increase the amplitude of the VR signal to a level above 1V?
Attached Thumbnails
1984 300SD tachometer troubleshooting-vr-sensor-schematic-diagram.png  
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