Page 1 of 1
Parduba Double Cup Mouthpieces Throat Diameters?
Posted: Mon Jul 07, 2025 10:35 am
by Johntrom
Anyone know what the exact throat diameter of these trombone mouthpieces are? Easy enough to find charts with the cup depth/diameters but absolutely nothing on the throats.
Thanks in advance.
Re: Parduba Double Cup Mouthpieces Throat Diameters?
Posted: Mon Jul 07, 2025 10:40 am
by Posaunus
I have a Parduba *4½* and a *5* small-shank mouthpiece (which play surprisingly better than I think they should).
Each has a 5.85 mm (0.230 in.) Throat.
Re: Parduba Double Cup Mouthpieces Throat Diameters?
Posted: Mon Jul 07, 2025 10:48 am
by Doug Elliott
I have an original Parduba 1 in my collection which measures to me somewhere around .930 to .935 ID. The throat is .229
Re: Parduba Double Cup Mouthpieces Throat Diameters?
Posted: Sun Jul 13, 2025 12:09 pm
by DRTrombone
I’ve got a *2* that came with a 1940s trombone. Can’t quite get my callipers deep enough into it, but eyeballing it I’m going to say 0.228”.
Re: Parduba Double Cup Mouthpieces Throat Diameters?
Posted: Sun Jul 13, 2025 12:13 pm
by DRTrombone
Bit of research courtesy of ChatGPT, 0.228” is a standard #1 drill size:
https://littlemachineshop.com/reference ... llsize.php