ORIGINAL: terrythegrey
Hi<span style="font-family: Verdana, Arial; font-size: 13px; background-color: rgb(251, 252, 255);">Craig
Great job on the recoil with servos.
Just wondering do you need certain servos with the TK22. I recently purchased one and I am trying to use a servo I got on ebay with on success.
I am also using the FlySky</span><span style="color: rgb(51, 51, 51); font-family: arial, sans-serif; font-size: 13px; line-height: 17px;">CT6B. Any help would be appreciate.
terry</span>
Not that I'm aware Terry, any servo should work, but some will probably just work better than others because of their speed & strength.
I was using Futaba S3114 servos in the Panther with no issues, & had a couple Hitec HS50 servos in my KV-1. I since stopped using the Hitec HS50 servos for recoil because I did experience some uncontrollable twitching when there was no firing of the main gun. I still use those Hitec servos for elevation though, as they don't seem to have issues when using them just for elevation.
However, I have recently switched to a different servo I came across anyway, the MG90S
<strong style="FONT-SIZE: 11px"> [/b]servos, which are a little bigger than the Futaba's & Hitecs I had been using, but they have metal gears & so far are working well in my KV-1 recoil.
So any servo should at least work, as long as you connect the plug properly to the board on the correct 3-pin jumper (J2 Recoil, J4 Elevation), with the signal wire (this below example is white wire) towards the inside of the board. So if a servo is connected to J2 correctly, any time you fire the main gun the servo should react. However, for a TK22 board, if you connect a servo to J4 for elevation, I believe you do need to reprogram the board's
Main Gun Function Mode to enable the servo to work for elevation before you get a response out of it. I can't test this because I currently do not own a TK22 board.

~ Craig ~