What's with the 100£ (116€) everyone is talking about? Are the prices over there really that high?
RC4 transponder:
http://www.eurorc.com/product/3386/m...c4-transponder
RC4 hybrid transponder that works with the older decoders, too:
http://www.eurorc.com/product/3308/m...id-transponder
1€ = 0,86£, so thats around 69 and 79 pounds for the transponders depending on which one you get? Those prices are pretty standard around here (around 80 eur for the RC4 and 90eur for the hybrid).
Also for jo90, if your transponder is broken, I am almost sure I have heard a long time ago that replacing a broken transponder is possible at a noticeable discount... not quite sure, though... but almost
