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.
For finer voltage adjustment resolution you could use a 10-turn pot, or connect a 500 ohm pot (wiper connected to one end) in series with the 5k ohm pot.
Here's the circuit if you want to use a standard pot resistance without the added parallel resistor, to give a linear voltage change versus pot position:
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