I recently bought a used radio from someone for a really good price(Hence the issues I'm having). It is a JR XS3 and it came with a RS300 Reciever. The reciever has issues that I have discovered to be a crystal looking devce that is soldered to the circuit board(Its bent over and taped to the cicuit board). I didn't get to far into it, so I need to see if its just a loose connection. When I touch it the receiver starts working again(Until I hit the race track boards then it stops working).

My question is, what would be the cheapest reciever I could buy that would work with this radio. I'm not looking to spend a bunch of money or care if it has adjustable frequencies. I really don't want to spend $70US for a rx as this is just a get me by radio until I step into something like 2.4GHz.

One fix would be to not hit the boards, but thats just not my style.