[PLUG-TALK] Keyboard cleaning, again

[John Jason Jordan]

On Wed, 20 Jan 2010 09:22:15 -0800
Larry Williams <larryw at holbrookmasons.org> dijo:

>Michael wrote:
>> One large speaker
>
>Maybe one of those outdoor or waterproof speakers.  A tweeter or 
>supertweeter, maybe, and pumped with high freq white noise.
>
>Or fit several of those jewelery cleaners to a common tub.

That sounds like a better idea. If Keith can cobble together a Thinkpad
to his liking, surely we can adapt a jewelry cleaner. I note that the
favored frequency seems to be 40K Hz, so it would probably be better to
use something that was designed for the job instead of a speaker.

I was thinking of a rectangular baking pan. We don't need depth, we
need length and width.

Amazon has quite a selection of jewelry cleaners at affordable prices.
And our local Harbor Freight has several as well:

http://search.harborfreight.com/cpisearch/web/search.do?keyword=ultrasonic&Submit=Go