Re: Re: Re: Opinions On Yamaha 621 CC


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Posted by Rick Denney on February 20, 2004 at 16:17:10:

In Reply to: Re: Re: Opinions On Yamaha 621 CC posted by David Nondahl on February 20, 2004 at 14:44:11:

The low F would be the big one, and many of the notes below it.

You could add a fifth valve probably using the parts for the fifth valve on the 621F. It would be too short for a flat whole step, unless you added a couple of crooks and folded it over. Or, you could adjust it and use it as a flat half-step, which would make the low F 2-4-5 instead of 4-5.

(Actually, the fifth valve for the F uses an extender so that it can be configured as a flat half step or a flat whole step. You might be able to buy two extra tuning slides and an extra extender. The extra slides would go in the first extender, but at right angles to it so their other ends are side-by-side. Then use another extender on the other side of those slides, with the third slide in the lower end of that. Lessee--that would make it a flat 1.5 steps for an F, which is like the third valve on a CC. It would be a little long for a CC flat whole step, but that could be fixed by trimming the extra extender. Thus, the only soldering and fabrication you'd need would be to install the valve and branch tubing in the leadpip ala the F. Everything else would slide together.)

The fifth-valve for the F mounts to the leadpipe upstream of the first valve, and the slide points up along the bell stack. I think it would fit without much modification on a CC.

Rick "who uses his 621 F for ensembles up to quintet" Denney


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