[ARC5] WHINK and crystals.

[jmfranke at cox.net]

I do not think this got through earlier, but you can see illustrations from Bliley's patent for the X-lap process at: http://www.bliley.net/XTAL/Story.html#Photos Chap 8 . The process was so named to try to conceal it from competitors. The drawing depicts how the crystak blank was held and another drawing shows the handy dandy calculator for estimating etch time.

John  WA4WDL


---- "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
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