This crystal is compatible with this receiver right? just wanna make sure http://cgi.ebay.com/JR-FM-Air-Receiv...item23125df0ed

That's a standard JR crystal for 72 mhz receivers. I don't see any reason why it shouldn't work.<div>
</div><div>Ken</div>

thanks

The advertizing doesn't say if it is a single or dual conversion crystal ( it makes a huge difference! ), but the grey packaging is normally used by the Dual Conversion crystals, while the single conversion crystals have no gray packaging/holder.

Actually, JR dual conversion crystals are in a red package. JR single conversion are in grey. And most JR FM receivers are single conversion with the ABC&W thingie which filters out noise. There are only a couple of JR dual conversion receivers out there, and the one in the picture isn't one.

So yes, it looks like the correct crystal.

(btw, this is why a "normal" JR crystal doesn't work in Futaba or Hitec gear, but I've seen plenty of guys interchange Hitec and Futaba crystals. Not a good idea, but it works most of the time since those are both straight forward dual conversion setups)

for more info;
http://www.jrradios.com/Search/Defau...ual+conversion
http://www.jrradios.com/Search/Defau...chTerm=crystal
http://www.jrradios.com/ServiceCenter/FAQ.aspx

You're right... I had forgotten about the JR's being single conversion on all but some of the higher channel count RX's.

I still have a few JR 72mHz RX's with the Red Packaged crystals.

iim glad i ordered the right one i dont have a problem still using 72 mhz stuff, i fly all my glow planes on 72 and havent had any problems in the past or present. They can be had pretty cheap.. i remember when i used to pay 129 for the 9ch 649 pcmS receivers.... now they can be had for peanuts

Crystal? What's that? sorry.. to much exposure to 2.4GHz...

cgr
umm crystal, now isn't that used for fine wine drinking?? , or have i got the wrong crystal?

Yeah, among other things..