Here was the first mention I heard of it:
∗∗∗
Standard pot and jack holes are 0.3750 (3/8) inches in diameter (9.53
mm). What if some people want to use large bushing pots and others want
small bushing pots, like the Alpha? No need to worry about hole sizes.
I learned this trick from Larry Hendry (R.I.P.). Fit a #5 rubber O-ring
to the Alpha pot bushing and it neatly fills the gap and fits snugly
into a 1/8-inch thick panel. The #5 O-ring is a standard plumbing item,
easily found at hardware stores, at least in the U.S.. I never worry
about mounting Alpha pots, as long as I have a box of #5 O-rings, which
I buy from Lowes. I use 3/8-inch holes universally for pots. If I
change my mind and want to replace an Alpha pot with one with a larger
bushing, it's a snap.
Richard Brewster
http://www.pugix.com∗∗∗
-Chris
On Jul 20, 2010, at 1:17 PM, Ti_ wrote:
>
> #5 O-rings if I remember correctly.
> I don't remember who the original genius was who discovered this but
> it is a perfect fit for fairly cheap.
> ~Tim C.
>
> From: woostern <woostern@...>
> To: ModularSynthPanels@yahoogroups.com
> Sent: Tue, July 20, 2010 10:48:14 AM
> Subject: [ModularSynthPanels] Adapt 8mm pot for 3/8 hole
>
>
> Does anybody have a clever solution for mounting a 8 mm pot in a 3/8
> hole (besides tightening the nut really hard)?
>
> I thought I remember somebody finding the perfect washer or rubber
> band, but can't seem to find the post in the archive.
>
> I guess I should stop being a cheapskate and order some of these:
>
> http://www.shopamw.com/servlet/the-50/NEW--dsh--Adapter-Washers/Detail
>
> Or just use Bourns.
>
> Nathan
>
>
>
>
>