![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUEpZJxuryk0q4b1KPYEsN2sttwklh3ImnVbq5P8Sb4vKVZkCeyyMi5selkznEt0yYYJCN59GZKY5dV9Ja2aFgUWnvx_KgB7ysH8dTlC4AUvKfnX6kz__eVi6TH6mqTY954A-gRD3rX1F2/s1600/bliley2.jpg)
Thanks to a recent posting in the Yahoo ParasetBuilders Group, I have a new-found respect for my small collection of prewar crystals! If you've ever wondered how a rough chunk of quartz gets transformed into an accurate frequency-generating device, this 'cinema-style' documentary shows exactly how it was done ... truly an amazingly complex, yet delicate, labor-intensive process.
After viewing the documentary, I can't help but wonder what later health effects some of these workers may have undergone after seeing them handling some nasty-looking chemicals and working directly beside desktop X-ray machines. If you've used old WW2 crystals before, I think you'll enjoy seeing how much work went into their production.
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