FatCat.Parts
3743 KHz Crystal, Ham Radio, JAN, USA Made, FT243, See Photos
Regular price
$19.95
JAN radio crystal for 80 meters, 3743 KC.
This is from the estate of an avid ham operator, who had lots of vintage gear.
There is no way to test this, so it is being sold as is.
It appears he used these crystals in a homebrew single-tube 6GW6 rig.
I suspect these are good-to-go, but I cannot guarantee it.