Hello, what happens if the needle is all the way over and you keep turning the wheel? Is there a safety feature of does it come out of tune and get loose? thanks!!!
The tuning string is fixed directly to the tuning capacitor, so the needle and the capacitor stay in sync unless the tensioning spring breaks or you open up the unit and really mess with things. The string is just wrapped around the wheel's axle a couple of times, so if you keep turning the wheel farther than the string can move, it slips in that loop of string.
After replacing the string, the needle does not travel the same distance from one end to the other but stops in the middle, since the tuning variable has no other turn to make. What could I have done wrong?
Using the wheel, tune the needle to the middle where it stops. Unhook the spring on the tuning capacitor pulley so the string can slip. Slip the string on the tuning capacitor pulley until the needle is at the end of the dial scale, moving it in the direction it was moving before it stopped in the middle. When the needle and the tuning capacitor pulley are both at the end of their travel, rehook the tensioning spring. You may need to repeat this process slipping one way or the other a little bit to ensure the needle points to the exact frequency that the capacitor is tuned to.
i have the same tuning string slipping problem but it is slipping on this copper(i believe as it is copper color) cylinder coming out of the tuning knob. how would you go about fixing that? the spring is tight and ive tried rethreading the whole string but it still doesnt work. please help? love your videos btw
Nice, thank you
Hello, what happens if the needle is all the way over and you keep turning the wheel? Is there a safety feature of does it come out of tune and get loose? thanks!!!
The tuning string is fixed directly to the tuning capacitor, so the needle and the capacitor stay in sync unless the tensioning spring breaks or you open up the unit and really mess with things. The string is just wrapped around the wheel's axle a couple of times, so if you keep turning the wheel farther than the string can move, it slips in that loop of string.
After replacing the string, the needle does not travel the same distance from one end to the other but stops in the middle, since the tuning variable has no other turn to make. What could I have done wrong?
Using the wheel, tune the needle to the middle where it stops. Unhook the spring on the tuning capacitor pulley so the string can slip. Slip the string on the tuning capacitor pulley until the needle is at the end of the dial scale, moving it in the direction it was moving before it stopped in the middle. When the needle and the tuning capacitor pulley are both at the end of their travel, rehook the tensioning spring. You may need to repeat this process slipping one way or the other a little bit to ensure the needle points to the exact frequency that the capacitor is tuned to.
Mutants 4300, fixed!
i have the same tuning string slipping problem but it is slipping on this copper(i believe as it is copper color) cylinder coming out of the tuning knob. how would you go about fixing that? the spring is tight and ive tried rethreading the whole string but it still doesnt work. please help? love your videos btw
Try adding another wrap or two around the post on the dial. You may also need to grease the rail the pointer rides on.
Try adding another wrap or two around the post on the dial. You may also need to grease the rail the pointer rides on.