A simple tiny PCb for those little alpha pots

[Russ White]

Sure Brian, give me a few, just got back from work. 🙂

 

[Russ White]

Here they are, with holes, and without. 😀

Enjoy!

 

[Greg Erskine]

Hey Russ, you're doing a great job here. Just a couple of questions.

I like the idea of your original PCB (no mounting holes) as you can also mount these inboard inboard with a simple angle bracket and mounting the pot thgough a hole.

Have you made you own resistor components? The pads look bigger - for single sided use?. What size pads did you decide on and did you decrease the hole size? I'm going through the same process but haven't actually got a PCB made yet so I'm only guessing. I'd be interested in your recommendations.

I was wondering the reason of having resistors on this PCB?

BTW: The resistors look like there are off the grid a little bit.

Thanks

 

[Russ White]

Hey Russ, you're doing a great job here. Just a couple of questions.

I like the idea of your original PCB (no mounting holes) as you can also mount these inboard inboard with a simple angle bracket and mounting the pot thgough a hole.

Have you made you own resistor components? The pads look bigger - for single sided use?. What size pads did you decide on and did you decrease the hole size? I'm going through the same process but haven't actually got a PCB made yet so I'm only guessing. I'd be interested in your recommendations.

I was wondering the reason of having resistors on this PCB?

BTW: The resistors look like there are off the grid a little bit.

Thanks

Thanks Greg! 😀

Yes, I modified the RCL library.

I honestly can't remember what size I made those pads or the drills(did it a while back), though I think I kept the holes the same, but Here is my library for you to look at. I also have a more complete one at work I will post later 🙂

I put the resistors there because I have some sources that are pretty hot, and even with headphone amps at unity gain I don't get enough pot travel, so the resistor pads are there so I can lower the voltage to the amp/preamp.

If you don't need it I can make a version without them, or you can jumper them.

Cheers!
Russ

 

[Greg Erskine]

Thanks Russ,

It looks like you dropped the drill size down one size to 0.7 mm and increased the pad to 1.9 mm.

Much appreciated. 😀

 

[Russ White]

I etched a cpuple of these today.

Here is the first version, without pads for resistors...

 

[Russ White]

and with...

I don't need no stinkin' mounting holes. 😀

They both worked great! 🙂

 

[Russ White]

Here are the eagle files for any who might want them. 🙂

Cheers!
Russ