Hi there!
Since precise dual ganged pots are rather expensive, I asked myself if it would be possible to replace them when needed (for example in a wien bridge oscillator) with JFETs working in the linear region, eg. as variable resistors, controlled at the gate via a single potentiometer?
I'm just a DIYer and a rookie, so I'd actually rather solder some small circuit with cheaper components that I've available than to pay a lot money for some dual gang pots which are clumsy and could maybe be replaced by a trim pot...
Does anyone have any advice? I tried googling for some time but seemed to miss the right words...
Thanks
Christian
Since precise dual ganged pots are rather expensive, I asked myself if it would be possible to replace them when needed (for example in a wien bridge oscillator) with JFETs working in the linear region, eg. as variable resistors, controlled at the gate via a single potentiometer?
I'm just a DIYer and a rookie, so I'd actually rather solder some small circuit with cheaper components that I've available than to pay a lot money for some dual gang pots which are clumsy and could maybe be replaced by a trim pot...
Does anyone have any advice? I tried googling for some time but seemed to miss the right words...
Thanks
Christian