Conn Director

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ATXBassBone
Posts: 66
Joined: Dec 23, 2021

by ATXBassBone »

I'm looking at this Conn 18H a guy in town is selling.

He says its a 525 which i want but im seeing all small bore specs when i look it up.

Were there any 18H's made with .525???
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Trav1s
Posts: 473
Joined: Jul 26, 2018

by Trav1s »

18H = .500" bore

75H/76H/78H/79H = .525"

Slides do not interchange either.
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Mamaposaune
Posts: 657
Joined: Sep 22, 2018

by Mamaposaune »

An 18H Dorector is a .500 bore.

The 50H Director has a .522 bore and an f-attachment.
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JohnL
Posts: 2529
Joined: Mar 23, 2018

by JohnL »

If he says he measured it, find out where he measured...
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ConnBone18
Posts: 12
Joined: May 13, 2018

by ConnBone18 »

18H director can also have a 0.485" bore.
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Crazy4Tbone86
Posts: 1654
Joined: Jan 14, 2020

by Crazy4Tbone86 »

[quote="JohnL"]If he says he measured it, find out where he measured...[/quote]

Good point. The person could have measured the outside of the inner slide at the non-stocking area. The stocking outside diameter for many Conn .500 bore horns is about .529 or .530.
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Posaunus
Posts: 5018
Joined: Mar 23, 2018

by Posaunus »

I don't think Conn ever made any 0.525" bore trombones.

The 78H and 79H were 0.522" bore. (Small difference, I know.)

14H "Director" and 18H Coprion "Director" were 0.484" bore.

Both were student model instruments.
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Matt_K
Posts: 4809
Joined: Mar 21, 2018

by Matt_K »

Isn’t the medium bore 8H slide a 525?
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atopper333
Posts: 377
Joined: Mar 09, 2022

by atopper333 »

Should be a .525 bore on the sl2525 and sl2547 slides I sometimes see on 8H and 88h. I think the 52h is also a .525 slide…maybe a newer thing for Conn instruments? I really like the way the 8h plays with a .525 slide…
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BGuttman
Posts: 7368
Joined: Mar 22, 2018

by BGuttman »

[quote="Trav1s"]18H = .500" bore

75H/76H/78H/79H = .525"

Slides do not interchange either.[/quote]

Note that Trav1s has given you 4 additional 0.525" models to take a cork barrel from.
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Trav1s
Posts: 473
Joined: Jul 26, 2018

by Trav1s »

[quote="Posaunus"]I don't think Conn ever made any 0.525" bore trombones.

The 78H and 79H were 0.522" bore. (Small difference, I know.)

14H "Director" and 18H Coprion "Director" were 0.484" bore.

Both were student model instruments.[/quote]

I mistyped in haste... thanks for catching that.

That being said, there were later 79H that were .525" horns. IIRC they were made in Cleveland and sourced King parts for the side. There was some major discussion on the TromboneForum about those horns.
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Posaunus
Posts: 5018
Joined: Mar 23, 2018

by Posaunus »

[quote="Trav1s"]<QUOTE author="Posaunus" post_id="199146" time="1673735054" user_id="158">
I don't think Conn ever made any 0.525" bore trombones.

The 78H and 79H were 0.522" bore. (Small difference, I know.)

14H "Director" and 18H Coprion "Director" were 0.484" bore.

Both were student model instruments.[/quote]

I mistyped in haste... thanks for catching that.

That being said, there were later 79H that were .525" horns. IIRC they were made in Cleveland and sourced King parts for the side. There was some major discussion on the TromboneForum about those horns.
</QUOTE>

And of course in my own haste, I neglected the SL2525 and SL2547 slides that Conn now makes for large-bore tenors, such as the 88H. Oops! :redface: