r/Trombone

What are these two knobs, they can rotate, I’ve always wondered

For the Trombone Trainer app, first download the “fun” library from the website which has Donna Lee broken down into 7 parts then swipe up/down to transpose and left/right to slow down or speed up.

is this deal as smoking as I think it is? was wanting to dip my toes into trombone and found a used Yamaha YSL-354 for $100, slide is smooth and has some dents on the tuning slide and a dent under the bumper at the end of the main slide

Hi all, I am a band director and know enough about trombone to teach it decently, but am by no means a specialist. My boyfriend dabbles with instrument repair and found this trombone for $50 on marketplace and offered $35, which they accepted. There were no up close photos or anything that could identify it on the listing, and he just figured he would use it as a practice instrument to work on slide repair because most used trombones need slide work, then maybe resell later.

When we picked it up, he immediately felt like he swindled the guy because we could both tell it was worth way more than $35. It had belonged to his dad who started playing it in the 1930s and then sat in climate controlled storage for 60 years, and they just wanted to be rid of it after that long.

From our research, it looks to be made around 1929. The main slide and tuning slide are also in good shape and not stuck - after we carefully cleaned the slide, I was able to play a B flat scale no problem.

Can anyone tell me anything else about this trombone? The whole instrument is beautiful, just some tarnish that you can see, but barely a dent at all, and the unique details are just exquisite.