Every week or so, depending on the responses I get, I will post another question related to radio/electronics theory, practice, history, or just about anything that might appeal to hams. The correct answer and the callsigns of the people who got it right will be posted with the next quiz.

If you have any ideas for a future quiz, *PLEASE* email me at:

Last week's answer and the quiz archives can be seen here.

Now for this week's quiz....


You want to make a position sensor or turns counter for a vacuum cap that has an 18 turn range using a 10 turn pot geared to the vacuum cap shaft. The pot shaft has a 48 tooth gear. About how many teeth does the gear on the vacuum cap need to have?

27

86

180

The shafts will turn in opposite directions, so this won't even work.

Callsign, name, or other alias