Drake used some Hunt crystals. The company was started in the early 30's in Carlisle, PA, by a
couple of hams, of course. The demand for crystals in WW II was so great that literally hundreds of
crystal manufacturing companies were formed. The process was extremely labor intensive, LOTS of
hand processing.
Most of those companies are long gone, International Crystal Manufacturing is still around (run by a
ham, of course, and makes the best rocks available today.
The crystal controlled oscillator was 'discovered' in the early 1920's. By the mid 20's hams were
using crystal control, but only the most adventurous. They were cutting their own blanks from raw
quartz and lapping it to frequency and then fashioning a mount of some sort. I think the FCC
'insisted' on crystal control for ham transmitters by 1935 or so.
Probably some errors, the memory ain't what it used to be!
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
www.k4oah.com
Neil M Califano wrote:
I saw some crystals made by Hunt. Anyone heard of them?
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