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How do you calculate the angles in order to have the sides join smoothly in a conical horn?




Hi,

I am about to have some 60 x 30 degree conical waveguides made for my Beyma TPL-150’s. (I already have the Beyma waveguides, but would really like to try larger waveguides in order to try to take the qualities of the Beyma's further down in frequency)

My question is:
How do you calculate the angles of the surfaces that are supposed to be glued together? (see picture)

I do not have the tools for making the waveguides myself, but will have a carpenter to do the cutting. Consequently, I would like to avoid too much trial-error work:-)

If anyone has the formulas - or other relevant tips - I would be really pleased!

Thanks!

Best regards
Peter


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Topic - How do you calculate the angles in order to have the sides join smoothly in a conical horn? - PK 13:14:29 10/4/11 (11)
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