I'm a new radio amateur setting up a half-wave 10-meter inverted vee antenna fed by 50 ohm coax. I understand that the inverted vee lowers the normal 72 ohm dipole closer to 50 ohms, so I only need to choke the common mode signal from feeding back on the outside of the coax. I obtained an old Hy-Gain BN-86 1:1 3-30 MHz balun, which Hy-Gain literature calls a current balun (notated in their literature below).
However, opening the enclosure, the wiring turns out identical to references of a Ruthroff 1:1 voltage balun (found on a several websites).
The diagram above from Marki Microwave shows that with one additional winding, a current balun with separate series windings (which seems proper for my use) becomes a voltage balun (an autotransformer).
Q: Will the third winding in my balun somehow help my inverted vee dipole or would an improvement be to remove the winding (rewind the balun) to convert this to a standard 2-winding current balun as a choke? I also wonder if the 30 MHz high limit is too close to 10 meters for this balun to be useful.