|Heckel Bocal Markings: What do they mean?|
There are many factors which influence the characteristics of Heckel bassoon bocals. They are represented by numbers and letters that are stamped on the bocal. You can learn the length, bore (internal size), alloy (body metal) and type of metal used in plating the bocal by knowing what these marks mean.
We've compiled these charts from the original specifications published in German by Heckel:
The bore or internal shape
The following letters are modifiers for the above bore types
The length from tip to rear
The alloy or type of metal used to make the body
The different alloys may be nickel plated, silver plated or left unplated for a lustrous brass finish.
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