[TPIN] Bach question

[Andy Del]

You'll need to measure the internal bore of the instrument to work out its
size - the outer diameter of standard weight Bachs are identical. 
Use a micrometer.

>From the little I know about Bachs, a large bore (.462)37 bell would be
quite a dark/heavy sounding and free blowing instrument. A #25 bell was
supposed to put some zing back into the larger bored instruments sound as
well as add some resistance.

cheers

Andy


-----Original Message-----
From: tpin-bounces+trumpetplayer=optusnet.com.au at tpin.okcu.edu
[mailto:tpin-bounces+trumpetplayer=optusnet.com.au at tpin.okcu.edu] On Behalf
Of David Johnson
Sent: Monday, 14 April 2008 1:22 AM
To: Daniel,John
Cc: tpin at tpin.okcu.edu
Subject: Re: [TPIN] Bach question


Sorry I wasn't clear but yes, I did that and each second valve slide fit
perfectly in all three horns.  Another oddity here is that the serial number
on the large bore horn is not stamped horizontally on the second valve
casing above the slide, but vertically on the opposite side of the 2nd valve
casing (away from the slide) and the "L" is stamped at the bottom of the 2nd
casing below the slide. I've never seen a Bach Strad with this configuration
before.


> Check the second valve slides and see if they are also 
> interchangeable. John
>
> On Sun, 13 Apr 2008 10:47:33 -0400 (EDT)
>   "David Johnson" <djohnson at berklee.edu> wrote:
>> I have an question for the Bach experts.
>>
>> I am trying out a Bach Strad sn 4xx,xxx. The second
>>valve casing is
>> clearly stamped with an "L" indicating a large .462
>>bore. The bell is a
>> 37, however, which is an unusual combination, right? I
>>also have 2 other
>> Strads, a regular 37 lightweight and a Vindabona, and
>>the tuning slides
>> from the large bore horn are virtually interchangeable
>>with the two ML
>> bore horns. I don't have any accurate measuring device,
>>but the inner
>> diameters of the slide tubing seem to measure the same
>>(as measured on the
>> shank of a trombone mouthpiece). So what's up with that?
>>Is it mismarked?
>> Is this another testament to Bach's quality control?
>>BTW, the horn does
>> play very well. I was just looking to try a large bore
>>horn, having played
>> medium bore horns for years (Connstellation, Martin Committee and 
>>Yamaha  Bobby Shew). Am I missing something here?
>> TIA.
>>
>>
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>
>



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