Originally from NORTHWEST MICHIGAN ARC.....Ok... here we go....
The first ever IOOK Crystal cross-application chart for VHF/UHF radio
Why do I need this?
For those who hate to toss out perfectly good crystals, in hopes that perhaps
they may someday find a use--- This table will allow you to determine
whether or not the crystals in the drawer will make various pieces of gear
operate on various frequencies in the radio spectrum. In many cases, a
crystal from a VHF receiver may be able to make a UHF transceiver operate on a
desired frequency. While there may be some tweaking involved, for
those who can deal with "offbeat" frequencies (ham operators notably)
the ability to recycle old crystals can save some cash-- and about six weeks of