Originally Posted by
davewerden
The one exception I know if is the Conn Connstellation from the 1960's. It had a thumb ring to move the slide in or out, against a spring-loaded center detent. At least, that is what I THINK I remember.
Dave, The Connstellation was a one way trigger like the modern ones. There was no center detent. You set the initial pitch using the thumb screw in the tuning slide brace with adjustments in the various valve loops. There was a very strong "snap back" spring that would bring the slide back to initial position. The thumb trigger was intended for the 4th valve range below low F and the C and Cb above that if played using 3rd valve instead of 4th. Otherwise the pitch tendencies of a Connstellation was the same as any other 4 valve Conn, which meant things tended a bit flat rather than sharp. High range, high A and above were particularly problematic in terms of flatness.
Doug
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