In a message dated 6/13/2008 1:10:33 AM Central Daylight Time, [EMAIL PROTECTED] writes:
Question to the specialists: what was the bore of the very, very old Conns ? Anybody knows ? In millimeters, please. To compare: Viennese bore (inside diameter of the cylindrical tube) is 10,8 mms. Hello Hans, I hope all is well with you and yours and that you are enjoying retirement. I have measured Conn 8D number 320445 which was made in the fall of 1937. The 8D was introduced in 1938 and, according to Jimmy Decker, this was the 6th 8D made. The measurements were made at several points including the leadpipe, the 6 valve slides and the Bb and F horn tuning slides. The measurements were consistant at all points and were 11.8mm (.465 inches). The modern 8Ds are listed at .468 inches (11.9mm). I measured a Texas 8D and another Elkhart 8D and they both measured 11.9mm (.468) at several points. The weight is 4 lb. 12 oz. For comparison, my Texas 8D weights 5 lb. 2 oz. and the Elkhart 8D weights 5 lb. 3 oz. S/N yr mm lb/oz mfgr. location ===================================== 320445 (1937) 11.8mm 4 / 12 Elkhart, Indiana 770xxx (1958) 11.9mm 5 / 3 Elkhart, Indiana Rxxxxx (1972) 11.9mm 5 / 2 Abilene, Texas Hope this helps. Best regards, Jerry Old in Kansas City **************Vote for your city's best dining and nightlife. City's Best 2008. (http://citysbest.aol.com?ncid=aolacg00050000000102) _______________________________________________ post: horn@music.memphis.edu unsubscribe or set options at http://music2.memphis.edu/mailman/options/horn/archive%40jab.org