Web Directory

» Bliley Electric Company History: The Early Years, 1930-1955
   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.
   http://www.bliley.net/XTAL/

» Crystal Grinding
   FT243 information compiled by Paul Carreiro, N6EV.
   http://www.qsl.net/n6ev/ft243.txt

» Crystal Info
   A handy historical chart of old crystal holders with dimensions, and suppliers.
   http://pages.cthome.net/fwc/XTAL.HTM

» Crystal Oscillators
   From N6EV. Tube oscillator schematics, and discussion.
   http://www.qsl.net/n6ev/68-xtal.html

» Crystal multiplier chart
   WB6SZS, Eugene Rippen's chart for crystal use on the HF, VHF and UHF bands.
   http://www.muchstuff.com/xtal-frq.htm

» Technical Information
   A useful technical reference page for Crystals.
   http://www.icmfg.com/technicaldata.html