[ARC5] Can old crystals be restored ?

[Richard Knoppow]

    The IEEE site I linked has a great deal of other interesting 
material on crystals on it.  For instance
https://www.youtube.com/watch?v=b--FKHCFjOM
    A film made by Reeves Sound Studios (later Reeves Soundcraft) who 
was a major supplier of crystals to the military during WW-2. It shows 
how crystals were manufactured at the time.


On 6/11/2016 2:05 PM, Dennis DuValll via ARC5 wrote:
> Yep, fracture in the wafer.  Not always easy to see.
>
> Dennis D.  W7QHO
> Glendale, CA
>
> ****************
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>> On Jun 11, 2016, at 11:32 AM, Kenneth G. Gordon
>> <kgordon2006 at frontier.com <mailto:kgordon2006 at frontier.com>> wrote:
>>
>> In my experience, the only FT-243 which cannot be fixed one way or
>> another is that the crystal itself is broken.
>>
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL