Crystals
6 links
Bliley Electric Company History: The Early Years, 1930-1955
Bliley.net
History of the company that invented and patented the overtone crystal, etch-to-frequency and variable crystals. Source for ads, engineering bulletins, patents and manuals.
Crystal Info
pages.cthome.net
A handy historical chart of old crystal holders with dimensions, and suppliers.
Crystal multiplier chart
muchstuff.com
WB6SZS, Eugene Rippen's comprehensive chart for crystal use on the HF, VHF and UHF bands.
Showing 20–6 of 6 results