SOLD Spektrum HP6DSM TX for sale $35 shipped CONUS. Paypal or check, priority mail shipping with a tracking number.
Appears to be new. I bought 2 of these to do DSM2 mods
for Turnigy 9x radios and ended up converting only one.
The 6 channel HP6DSM is the best source for the Spektrum DSM2 module because you don't have to desolder anything to get the module out. The HP6DSM's antenna can even be used on the 9x. Even with the Spektrum module removed you can still use the TX for a simulator or a buddy box for a Spektrum Radio with a simple 3.5mm mono cable.
This is a full range radio and can be used for airplanes too. In airplane mode you get only 5 usable channels. The 5th is fully proportional on the pot. The rudder will have only about 50% travel because of the helicopter firmware. All channels reversible.