THIS is a listing for 1 crystal 3.3950 (other 2 have been  sold) and the entire circuit board (carrier osc) board. I dont have the ability right now to test the entire board in operation but I can carefully unsolder and test the crystals for oscillation. I still have one of these crystals (2 sold) I forget which one i sold but I can look it up. — I test my crystals with a test oscillator. They do get old and perhaps drift a wee bit in value so bear that in mind when buying or using older crystals — feel free to ask me abouta anything pertaining to crystals or radio parts. I was going to RETIRE FULLY — but the economy is inflating prices and ive decided to keep selling stuff. I ALSO BUY STUFF and take donations ie junker HEATHKITS (STILL very popular for sentimental use and restorations) and other older gear— I WILL BE GOING TO OTTAWA and Parry Sound flea markets and Sudbury/Garson in early September — LOOK FOR MY TABLES at those flea markets.