Edwards leadpipe swapping?

[NateR]

Hi all,

Just curious if Edwards tenor trombone lead pipes are interchangeable between bore sizes? Specifically will a 547 lead pipe fit in my 525/547 slide? I know they're both threaded, just curious if it's the same. That make sense?

Thanks!
Nate

[Matt K]

No, leadpipes are (or at least should be) specific to their bore size +/- .001. (E.g. a 509 pipe might fit in a 508 but it'll be super snug because .001 is a really small distance and likewise a 508 might work with a 509 and just fit loosely).

So you might be able to fit a smaller pipe in a larger one but in my experience, these will be a little bit unfocused. You can make alterations to a leadpipe to make them fit if there is enough material on them. E.g. you can buff down a 547 pipe to be a 525 if there is enough material to take away and still have it be a pipe. Likewise, you may flare the bottom of a pipe to fit in a larger bore size with the risk that the pipe will crack if it is too great a distance or the material is too thin. I had a 485 pipe that I expanded to be a .491 pipe but it wouldn't fit in a 485 slide after the alteration.

[bimmerman]

No, Edwards .547 pipes will not fit in a .525 receiver without significant shortening.

However a .525 will fit in a .547, the threaded collar is the same.

[paulyg]

The threads are the same, but in Edwards slides, the .547 large shank receiver interferes with the top tube, i.e. you can't actually screw it down, or fit a large shank mouthpiece in.

[tromboninator4000]

I know for a fact the .547 bore leadpipe works in a .562/.578 dual bore slide. However a .562 pipe will not work in a .547 slide for obvious reasons.

[Burgerbob]

I know for a fact the .547 bore tuning slide works in a .562/.578 dual bore slide. However a .562 pipe will not work in a .547 slide for obvious reasons.

A .547 pipe will screw into a bass slide, but it doesn't really fit or seal.

[tbonesullivan]

A smaller pipe may fit in a larger bore instrument, but it's not really recommended. You want a good seal and the smallest "step" possible from the end of the pipe to the bore of he instrument. That is not accomplished if you put a .508 pipe in a .525 slide, or anything along those lines.