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Title: Concentric linear pots
Post by: fsaviator on January 06, 2015, 05:52:30 PM
Anyone have a good source for concentric linear pots (not dual pots), two pots with a concentric shaft.

I want to use them for my DU, radar and terrain dimmers

Thanks,
Title: Re: Concentric linear pots
Post by: mickc on January 06, 2015, 06:08:41 PM
Hi Warren,

These can easily be obtained through Ebay as they are widely used on electric guitars.

Linear ones are a bit rarer, but i got mine from this guy, and he still has them

http://www.ebay.com/itm/NOS-DUAL-POTENTIOMETER-1K-10K-CONCENTRIC-SHAFT-LINEAR-TAPER-1WATT-MFG-CLAROSTA-/261473543490 (http://www.ebay.com/itm/NOS-DUAL-POTENTIOMETER-1K-10K-CONCENTRIC-SHAFT-LINEAR-TAPER-1WATT-MFG-CLAROSTA-/261473543490)
Title: Re: Concentric linear pots
Post by: Aerosim Solutions on January 06, 2015, 11:46:55 PM
I make them Warren, there is still a picture of them on my crappy out of date website - http://www.aerosimsolutions.com.au/dual_rotaries.html (http://www.aerosimsolutions.com.au/dual_rotaries.html)

I wish I knew how to edit websites lol!! Cheers Gwyn
Title: Re: Concentric linear pots
Post by: fsaviator on January 07, 2015, 01:00:32 AM
Thanks for the tips, guys.

I'm not sure I want to add making them to my list of projects.  I'm in the home stretch now and and still have a list of things I need to get around to making.  I still need to cut a new front panel for my MCP and EFIS and have been having a heck of time figuring out feeds, speeds, and cutting tools for 6mm acrylic.
Title: Re: Concentric linear pots
Post by: Aerosim Solutions on February 08, 2015, 08:19:21 PM
6mm Acrylic with s 3mm end mill cutter, I would use -

200mm/minute feed, 80mm/minute plunge rate and depth of cut 3mm for 2 passes.

Cheers Gwyn
Title: Re: Concentric linear pots
Post by: fsaviator on February 09, 2015, 12:41:23 AM
Thanks Gwyn!

I'll give it a go.

Warren