LROBBINS wrote:Since manufacturers try for parts commonality, take a look at the markings on the other transistors (e.g. TR4) and then google those markings.
That was my hunch but just looking at the package dimensions it doesn't quite fit any others on the board. Slightly smaller width than TR1 and TR4.
Not sure if it's a PNP or NPN type.
rustyjames wrote:Those joysticks are easy to find in ebay, at least in the US. They are pretty robust, I've never had any problems with one except for the on/off switch.
I'm in Australia, NSW so it's a bit harder to source a second hand unit without paying extortion rates, and with O/S purchases the shipping is normally a killer.
The wheelchair works but just no led strip indicators.
Another question: Whats the max input voltage of these P and G drive units? Just I have a two of 16000mAH 4S batteries with a storage charge in series at around 30 volts. I normally charge them up to 4.10v/cell to 32.8v for my remote control lawnmower. I just want use light power supply to move the chair around the garage.