Well, I'm not a contortionist, nor do I have really small hands, but this past weekend, I did teach the dog some new curse words and managed to get the old tach out of the car. Turns out that my squeal is coming from the instrument itself, and it and the clock are on their way to North Hollywood Instruments for some freshening up.
But, as is always the case,while doing this, I also determined why the lighting for my tach doesn't work. Seems that one of the tiny screws that hold the leads to the post on the back of the tach has gone AWOL, so I need to come up with another.
Does anyone know what size this tiny screw is? I'm sure I can find one in town, but just need to know what to ask for.