[sdiy] Prophet 5/10 grey button caps?

[Eric Brombaugh]

On 10/14/2010 08:23 AM, Eric Frampton wrote:
> Hey there -
>
> Anybody happen to know a source (or, if they're still made, a part number) for the grey button caps used on the Prophet 5 and 10? I don't need the switch, just the caps with the holes for the LED's - mine have turned brown (!) after a bit of exposure to some sunlight in the past.

There's a lot of internet lore on brightening yellowed plastic, a lot 
comes from research done by folks restoring old computers (C64, Amiga, etc).

Here's one site that seems to cover a lot of the techniques involved:

http://www.howtocleanstuff.net/kitchen-and-bath/kitchenware/how-to-whiten-yellowed-plastic/

Eric