i have B,3,4 slots open on my transmitter. does it matter where my transponder and capacitor go as long as there all -,+ together? what is the B for? i know from tekin its 1 to turn, and 2 to burn. so those are used. but what about 3,4?

The only ones that matter are the esc and servo. All the others are only supplying power. No other input.

got it. thanks.

3 & 4 can be used for transponders, glitch busters etc. "B" is for a battery receiver pack if you ever have to run one. (one cell use)