Hi,
Wondering if someone can let me know if this is okay?
I have an opamp which simply gets a 0-5v input and amplifies it to 0-12v, well it can be anything from 0-12v to 0-12.5v depending on other components.
I have placed a vaiable resistor (see attachment) so I can scale it up to the required voltage. It works fine on prototype board, and wondering if temperature changes am I right in thinking that the voltage will be the same as the ratio in the variable resistor wipers will always be equal?
Many Thanks
Scott