03-15-2019, 07:09 PM
The steel tip is about 1/8 x 1/4 with a small spike just over 1/16 wide and about 3/8 long. The tip is small enough that I can't imagine it having much effect on the tuning. It certainly would have less effect than using an ordinary screw driver. I'm away from my shop right now, but the first of the week, I will post some photos.
Steve
Steve
M R Radios C M Tubes