Grayhill PC mount series 71 hollow shaft switches FOR SALE

[Potato Cakes]

I do have some more. I will have to check how many.

 

[MountCyanide]

Excellent! Let me know and I’ll grab some.

 

[Potato Cakes]

How many are you wanting?

 

[MountCyanide]

9 of the 2x6 would be great if possible

 

[Potato Cakes]

I have 9 2x6's that I can sell you.

Thanks!

Paul

 

[MountCyanide]

Thank you Paul!
They’re working absolutely GREAT.
I used common Bourns pots with 6mm shafts and used a 6mm to 3mm adapter into the 3mm rod and it’s excellent.

 

[Potato Cakes]

Looks fantastic. I may have to order some more for product I'm wanting to release later this year. I'll update this post if I have any excess that I would able to sell.

Thanks!

Paul

 

[Dave_Eropkin]

I'll have to do some digging. For the boards I am using the pots I have don't solder directly to PCB. I fitted the shaft through the Grayhill then did some custom fastening to secure the pot. What I would recommend is using some like this: Classic Audio Products, Inc.. Then add a shaft extension. For mounting to make sure the shaft lines up, you fit the shaft in the Grayhill and solder the switch in place. Then you would solder the pot at whatever height it winds up being that makes the shaft straight and not bind. This is how Jeff at CAPI does all of his attenuators for his preamps. Or you can have a riser PCB like Mike at Hairball does his Lola preamps. I think this approach might be a bit easier than trying to find a potentiometer that has a shaft at the same height from a PCB surface to match the concentric hole of the Grayhill. I did try finding something to do what you are looking to design but it wound up being easier to just find the shaft length and value then make it the physical dimensions work with the board I was using. The other option would be a custom order, which can have long lead times and expensive minimum orders as you may know.

Thanks!

Paul

I built some 1.6 mm spacers to address this issue for Bournes 7mm sealed pots. Since the Grayhill's I have are 10mm to center (Hopefully the hollow shaft ones are the same), this will allow the shorter pots to be raised to 10.2 mm, using 2 of the spacers, which should allow them to interface nicely with the Grayhill's.

 

[Potato Cakes]

I found the original drawings from Grayhill. Should answer any clearance/dimension questions.