5k ohm pot to 10k ohm pot possible?

[AndersonENGINEERING]

Can I stick a 5.1k ohm resistor in between the board and wiper or not?

[Keeb]

Yes, of course the range of the pot would still only be 5K.

Edit: I re-read your post and I'm not quite sure what you want to do. If you want to make the pot a 10K then sticking a resistor between wiper and board will not help you. If you need the "wiggle room" of a 5K pot but never want resistance to be below 5K then adding the resistor will help.

[AndersonENGINEERING]

What would be the effect if I used a 5k ohm pot (EP Booster)?


Sorry if this is dumb, I am learning

[AndersonENGINEERING]

Could I run a different resistor in parallel?

[Rob Strand]

It depends what the circuit is.

Some circuits you can just change the pot value with minimal impact.

Converting a 10k pot into a 5k pot is possible in some connections.

Converting a 5k pot into a 10k pot is generally not possible.  You  end-up with a reduced  range of adjustment.

[idy]

I think in the EP booster the gain control is in series with a "source resistor byopass cap" and making it only 5k will give you max gain but not the lower gain setting. Adding a 5k resistor in series will give you lowest gain to medium but not the highest setting. Take your pick or get a 10k pot. I would try it 5k and see if it is Ok for you.

[anotherjim]

It's used as a variable resistor and lower resistance is more gain in that circuit - so with 5k you won't be able to clean it up as much as a 10k pot. If you put 5k fixed resistor in series with the pot, then it can be as clean as the 10k pot turned to max resistance, but it won't give as much boost turned to minimum. If you have a 5k preset trimmer, you could fit that in series with the 5k pot and preset it to the best range.

I'll warn you in advance that the JFET in Q1 position can give trouble because that transistor type has widely variable characteristics and the circuit has fixed resistors setting the bias so not all JFET's will work properly, even if of the specified part number.