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Old 06-24-2017, 10:17 AM   #4
tubman
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Location: Minnesota, Florida Keys
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Default Re: 12 volt tach on a 6 volt positive ground system

Quote:
Originally Posted by adileo View Post
Would this work on an earlier car? Example: 39/40 with a helmet oil, with resistor under dash only puts out 4 bolts?
The short answer is "Yes". The power booster units we use are adjustable to use input voltage from 3.0 volts to 30 volts. You do raise an interesting point, though. We may need to know the coil voltage for each order. In the alternative, the output voltage is adjusted by turning a small screw that could be set by anyone with a modicum of skill and a multi-meter.
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