Electrovibe gain trimmer: 1K ok?

[Bucksears]

Stupid question, as I can (probably) adjust DOWN to the necessary range using a 1K trimpot.
I'm just not sure if there is a 'sweet range' and it needs a 500R to dial it in easier.

If you can't tell, I don't have a 500R at the moment and I'm itching to get this done this weekend.

 

[neiltheseal]

Stupid question, as I can (probably) adjust DOWN to the necessary range using a 1K trimpot.
I'm just not sure if there is a 'sweet range' and it needs a 500R to dial it in easier.

If you can't tell, I don't have a 500R at the moment and I'm itching to get this done this weekend.

I’m sure it will be fine.

If you think the range is too narrow with 1k you can connect a 510 ohm resistor between pin 1 and 3

 

[Cybercow]

Yes. Because the trimmer is used in rheostat-fashion, a 1K trimpot can be used there. It will simply have a smaller 'sweet-spot' is all.

 

[Bucksears]

Thanks guys - turns out I need to order a few things for another build, so I'm going to pick up a 500R trimmer as well.
Sorry - I get OCD about things like this, wondering if it would sound 'better' after the fact, if I had the 'right' part in there.

 

[jwin615]

I’m sure it will be fine.

If you think the range is too narrow with 1k you can connect a 510 ohm resistor between pin 1 and 3

Pins 2 and 3.
Looks like pin 1 is floating in the schem(maybe isn't on PCB?)
R27 is 100R. Could shrink that to increase the sweet spot a *little*.
Or replace it with a smaller value trimmer. Dial in the 1k trimmer to close enough, then adjust the R27 trimmer to fine tune.
Alternatively, use a multiturn 3296W if you have one on hand. Jumper the gain pads 2 and 3 and replace R27 with a multiturn. It's pretty easy to bend two legs together and insert one into a resistor footprint.

 

[neiltheseal]

Pins 2 and 3.
Looks like pin 1 is floating in the schem(maybe isn't on PCB?)

You are right. I should have checked the schematic first and not assumed before replying