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stickyencoder [2007/04/26 15:26] n5na |
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| -Now, make sure the copper tabs are at their furthest detent position inside the skirt. The idea here is to set the knob at the position that will have the least drag. | -Now, make sure the copper tabs are at their furthest detent position inside the skirt. The idea here is to set the knob at the position that will have the least drag. | ||
| -Slide the knob onto the shaft as far in as possible, but do not force. Now, pull the knob back out about 1/16 of an inch, and trial-tighten the Allen set screw. You should have a free spinning knob. | -Slide the knob onto the shaft as far in as possible, but do not force. Now, pull the knob back out about 1/16 of an inch, and trial-tighten the Allen set screw. You should have a free spinning knob. | ||
| - | -Adjusting the drag is not easy. Try using a pair of rubber gloves on one hand (my left) pressing the silver skirt against the front panel with thumb and forefinger while clicking the knob through a couple of detents. Clockwise tightens drag; counter-clockwise decreases drag. Finally, tighten the Allen set screw some more once you are satisfied that you have no drag, or some drag, depending on your preference. You may have to experiment a bit with knob placement on the shaft. You will notice a dramatic improvement in | + | -Adjusting the drag is not easy. Try using a pair of rubber gloves on one hand (my left) pressing the silver skirt against the front panel with thumb and forefinger while clicking the knob through a couple of detents. Clockwise tightens drag; counter-clockwise decreases drag. Finally, tighten the Allen set screw some more once you are satisfied that you have no drag, or some drag, depending on your preference. You may have to experiment a bit with knob placement on the shaft. You will notice a dramatic improvement in the smooth, silky feel of the tuning knob, especially for those who want a free spinning knob with no drag (I'm one of them). There will be some play when you grip the knob and move it side to side; this is normal. You can center the silver skirt if it is a bit off center; it is spring-loaded into position. |
| - | the smooth, silky feel of the tuning knob, especially for those who want a free spinning knob with no drag (I'm one of them). There will be some play when you grip the knob and move it side to side; this is normal. You can center the silver skirt if it is a bit off center; it is spring-loaded into position. | + | |
| -Slide the rubber band and the exterior rubber "grip" strip back on to the tuning knob. | -Slide the rubber band and the exterior rubber "grip" strip back on to the tuning knob. | ||
| -In electronic restoration work, I've found Black Magic Pro Shine Protectant (available at Auto stores) an excellent product for cleaning and UV protection of rubber, plastic radio panels, knobs, and painted radio panels. It doesn't damage paint. My rig is in a brightly sun-lit room at 9,000 feet above sea level. Use a fine brush to apply a thin coat, let dry, and polish with a second fine brush or cotton cloth. | -In electronic restoration work, I've found Black Magic Pro Shine Protectant (available at Auto stores) an excellent product for cleaning and UV protection of rubber, plastic radio panels, knobs, and painted radio panels. It doesn't damage paint. My rig is in a brightly sun-lit room at 9,000 feet above sea level. Use a fine brush to apply a thin coat, let dry, and polish with a second fine brush or cotton cloth. | ||
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| + | Peter Hoon | ||
