King 5B bore size?

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bigbandbone
Posts: 602
Joined: Jan 17, 2019

by bigbandbone »

Looking at a used 5B in good shape. Does anybody know what the bore size on a 5B is? Thanks!
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BGuttman
Posts: 7368
Joined: Mar 22, 2018

by BGuttman »

There are several "flavors" of 5B. I think the dividing line is the mid 1960s when the model numbers went from 14xx to 20xx. The newer one is 0.547" on both tubes -- it's basically the same slide as the 4B. The older ones can be either a dual bore 0.536"/0.547" or single bore 0.547".

The main difference between a 4B and a 5B is the bell taper and size.
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Matt_K
Posts: 4809
Joined: Mar 21, 2018

by Matt_K »

Check out this thread:

<LINK_TEXT text="https://trombonechat.com/viewtopic.php? ... =5b#p78619">https://trombonechat.com/viewtopic.php?f=13&t=8737&p=78619&hilit=5b#p78619</LINK_TEXT>
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bigbandbone
Posts: 602
Joined: Jan 17, 2019

by bigbandbone »

Thanks!
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bigbandbone
Posts: 602
Joined: Jan 17, 2019

by bigbandbone »

After reading that other 5B thread I think I'll steer clear for now. Very confusing. And buying without trying (via internet) is a real crap shoot!
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Kingfan
Posts: 1371
Joined: Apr 11, 2018

by Kingfan »

If you check the serial number, you can find out when it was built. Given that, you might be able to determine if it is a horn you are interested in pursuing. I've got an early 70s 4B, .547 straight bore, and love it.