Apparently non tapered rotors, when they wear after some years, are more expensive to repair than tapered rotors. Some things I've heard said about them are that the quality of their assembly was variable, and that the valve rotors are not tapered. In what ways are they inferior and >how would they compare with other horns?īuku Perencanaan Dan Pengendalian Produksi Pdf To Word. Abilene >Horns) are inferior to the regular 8D's. On Wed, 01:44:37 -0500, Tjenchew Lee wrote: >I've often heard that Conn 8D horns made between 19 (i.e. Conn moved its production of professional line low brasses to Abilene in August of 1972, (Not 1967 as some incorrect serial number lists indicate.) Erik Siverson Charles Turner 00:00. USA with no reference to Elkhart Indiana, then it is an Abilene horn. Most importantly, when Conn moved to Abilene, they discontinued the process of tapering the rotors and cylinders of their rotary valves in order to save time and lower costs in the manufacturing process. However, the workmanship (assembly, soldering, finishing, and machining) is considered to be of inferior quality in comparison with the Elkhart instruments since the Abilene workers were largely inexperienced and unskilled. Conn moved to Abilene for the advantage of using local labor who were willing to work for less than the experienced workers in Elkhart.
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