This 3.579545 MHz crystal is known as the color burst crystal and is the NTSC-M frequency. It was used to periodically re-lock a local oscillator in a TV to the subcarrier reference. This precise crystal is in the metal HC-49/S case. Brand new - Sold in a package of 5.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
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