ORIGINAL: CGRetired
...The RX crystal, on the Quasar, may not be easily swappe with another one, but you may remove it and push it back in.
CG,
The Quasar receiver crystal is a "universal" one. All of the Airtronics crystals for dual-conversion are the same. One from a brand new receiver purchased today will work in the Quasar receiver.
I have a Quasar that I still use today. It's a great radio that has given me absolutely no problems in the 9 years that I've had it, and is always rock solid.
Ken