[ARC5] WHINK and crystals.

[Dave Merrill]

On Thu, Jun 27, 2013 at 1:16 PM, Kenneth G. Gordon <kgordon2006 at frontier.com
> wrote:

> On 27 Jun 2013 at 10:22, Bob Moody wrote:
>
> > Dennis said, " You need to insure the solution has good access to both
> sides without
> > > masking off a part of any surface."
> >
> > So did you stir, shake or flip the xtal while it was soaking, or just
> let it
> > sit?
>
> I just let it sit. I was leery of agitating it enough to make it splash.
>
> > Maybe a tank with a bubbler to keep the xtal blank agitated?
>
> I have a bubbler. Good idea. I'll put that to work here.
>
> > Wonder how Bliley did it in the old days.......
>
> I dunno. Maybe someone on the ARC-5 list knows.
>
> Obviously, I need to make some improvements in my methods here. This was a
> first
> experiment for me, and everything was done somewhat haphazardly. But it
> worked.
>
> I am pleased at this first attempt.
>
> Ken W7EKB
>

How about using an ultrasonic cleaner?  Obviously you wouldn't put an HF
solution directly in the pan, but if you left it dry and put the crystal
and etching solution in a capped jar in the empty pan, would that work?

Since these cleaners use piezo ceramic transducers to create the
vibrations, it would be one piezo device etching another!

Dave
N9ZC