The Turnigy Evolution is an inexpensive transmitter apparently designed more or less exclusively for quad pilots flying software like Betaflight or Cleanflght.
It's a great controller for controlling relatively simple aircraft.
It's got everything you need to fly quads and it's a great form factor - the case is sort of like a Playstation controller with a screen.
It's a really good controller. The feature set is minimal but it does everything most quad pilots would need and it does it well and at $74USD (15 July 2017 it's a really good transmitter, which I'd highly recommend to any one getting into FPV/racing/freestyling .
BUT
I recently had an issue where the throttle stick would occasionally get stuck.
When that happened I could not get the throttle past about about 50%.
I Googled and searched YouTube, but could not find anyone who was reporting similar issues.
So I pulled the controller apart but could not find any loose material. I was stumped.
Then while putting it back together I noticed the switch on the back of the controller was loose.
It could move in and out. Hmmm could this be the issue?
As it happens yes it was the issue. The difference between a working throttle and a jammed throttle was about 3mm of movement.
Since I didn't find any one else reporting this issue I made a video explaining the issue and how to solve it.
