Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hi
Thanks again, i will build over the winter but probably wont use until April, will let you know the outcome.
One last question i notice two trimmers how accurate would it be without these? +- 10% is fine.
Regards
Jules
Hi
Thanks for reply,i am not quite sure what you mean by floating but the 28 volt supply shares a common ground/neutral with the variable resistor and comes from a battery bank with charger regulated to 28.8V,the gauge has just the two terminals and i believe is just a straight ammeter type...
Hi
I have to convert an existing circuit to run a more modern gauge due to obsolete parts.
I have a 28.8volt power supply a variable resistor 10-180ohms which measures oil pressure, of which at 10 ohms i wish to output 4ma and at 180 ohms i wish to output 20ma to drive a gauge which has 106...
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