Perhaps you could answer a few questions for me:

1. Is the knob dial marked 0-100?
2. What are the major (numbered) marks? Is it every 10, or 5?
3. What are the minor (ticked) marks? Is it every 1?
4. Is the knob attached to the dial? Or to the signal generator?

Thanks for the help.

Dave Goncalves
W1EUJ