The best way to avoid stuck slides is to keep them clean and lightly greased, moving them every couple of months so they never get stuck. If you know you are not going to use the instrument for a period of time then consider removing the slides and wrapping them in soft cloth. You can try WD40 or similar lubricant and leave overnight before trying again. That said, if you have got stuck slides then your best bet is to take it to a local repairer to avoid further damaging the instrument - I have had many instruments come to me where Dad has attempted a repair and ended up having to buy a new slide - and in one case a new instrument! www.crumpledhorn.co.uk
Trumpet wax
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You don't unless you know what you are doing. You can try one simple thing that might work if it is not badly stuck. Loop a hankerchief through the slide. Grab the trumpet by the mouthpiece lead pipe just behind the tuning slide and give the hankerchief and easy jerk. (the hankerchief reduces the possibility of putting a crimp in the slide by distributing the force. If the slide moves, wiggle it back and forth until you work it loose and then clean and grease it.
If that doesn't work. STOP. Hire an expert. You have nearly a 100% chance that you will do extreme damage if you try to repair it further.
An expert has skill and additional tools to be successful.
tubas have multiple slides, and one tuning slide
The bore of a trumpet varies. One very common bore is 0.460 inches inside diameter. It is measured on one of the tuning slides.
The pitch can be changed by tightening or loosening the lips (embouchure), depressing a valve or valves and by moving tuning slides. The pitch can also be affected by temperature and by the density of the gas being blown through it. Try playing a trumpet with a lungful of helium.
a B flat trumpet will tune to an A by playing a B. A C trumpet will tune to an A by playing an A.
a B flat on the piano is a C on the trumpet or just type in online trumpet tuner on google and it will come up with the tone. You pull the valve in and out where the spit comes out to tune the trumpet.
tubas have multiple slides, and one tuning slide
there are 3 valves, and 4 slides (one for each valve and a tuning slide)
The bore of a trumpet varies. One very common bore is 0.460 inches inside diameter. It is measured on one of the tuning slides.
there are two ways. Your lip position accounts for part of it and the position of the tuning slides are also a part of it.
The value of the trumpet mostly depends on what condition it is in. Say the valves or the tuning slides are all seized up, the trumpet would not be worth much. But it really depends on the buyer.
2???? Mouthpiece, leadpipe, valves 1-3, tuning slides, and bell...just for starters.
The Trumpet consists of Eight parts The Bell The Finger Hook The Valve Casing The Piston The Lead Pipe The Tuning Slide The Valve Slides And The Mouthpiece
The pitch can be changed by tightening or loosening the lips (embouchure), depressing a valve or valves and by moving tuning slides. The pitch can also be affected by temperature and by the density of the gas being blown through it. Try playing a trumpet with a lungful of helium.
a B flat trumpet will tune to an A by playing a B. A C trumpet will tune to an A by playing an A.
a B flat on the piano is a C on the trumpet or just type in online trumpet tuner on google and it will come up with the tone. You pull the valve in and out where the spit comes out to tune the trumpet.
bell, mouthpiece, tuning slide, valves
A reverse tuning slide allows the air to flow smoother through the tuning slide area of the trumpet. In most trumpets, the top end of the tuning slide fits into the leadpipe creating a small obstruction where the air meets the rim of the tuning slide (inside the leadpipe). On a reverse tuning slide, however, the tuning slide fits over the leadpipe, eliminating that obstruction and allowing the air (in theory) to flow smoother.