they are in a good condition, the complete set has been used 8 months and the E and A two months more (mix with a Lenzner gut).
I do not know the exact diameter of the G, but + - 2.05mm
a friend just gave me the solution
1 connect the output (to turn the preamp)
2 put the phantom power on tip starting from the off position
3 connect the StatB and miracle, I have a fabulous sound
it's crazy but but it works