[Milsurplus] Let's appreciate crystals
Ken Kinderman
scr274 at gmail.com
Tue Oct 28 11:18:43 EDT 2025
Just watched "Crystals Go to War" on youtube.
https://www.youtube.com/watch?v=wHenisSTUQY
Never again will I take the humble FT-243, DC-10 and their cousins for
granted. I suppose if we thought about it, we would appreciate the labor-
and skill-intensive process, but this film drives it home.
These guys and gals were heroes...
- hand selecting and hand grading the quartz
- dipping the raw stone into oil to identify the axes, hours at a time:
bare hands, no gloves
- further grading with the casual use of X-rays: I notice only one young
lady with a bare minimum protective apron
- crystal dust
- bare hands in hot soapy water all day
- fingers inches away from razor thin, diamond edged, spinning saw blades
- skillfully evaluating the quartz slices for imperfections and maximum
yield
- acid fumes
- constant exposure to watery abrasive slurry
- only once did I see protective gloves: a young lady removing blanks from
the "acid bath"
- coaxing the blanks, one by one, onto frequency.
- putting little metal labels on with tiny screws, no doubt "girls work"
I will think twice the next time I abandon an oddball frequency crystal as
unusable. Each one is a gem.
73,
Ken
W2EWL
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