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Trumpet Discussion Discuss Bottom sprung / Top sprung Valves in the General forums; As far as Conn goes the earliest horns I have are top sprung from my 1906 Conn-querer up through my ...
  1. #21
    Mezzo Forte User harleyt26's Avatar
    Join Date
    Dec 2009

    Re: Bottom sprung / Top sprung Valves

    As far as Conn goes the earliest horns I have are top sprung from my 1906 Conn-querer up through my 1928 2B. Then at some point they started producing many models with the bottom sprung style with a top guide plate and pin using a very short broached slot no longer than the top sprung broaching.This was used in Victor model trumpets and cornets for many years. This was used in my 80A Victors 1946-47-52 and my 1956 Victor 6A and B models. But the long broach I have only found in the student models like my 1957 Director trumpet and my 1958 Director 18A Coprion cornet. So it doesn't make much sense to say the top sprung models blew the bottom sprungs away or that the bottom sprung style is old school(top sprung is older) or that the long broach was too hard or expensive to make (since it was used in the cheaper student models) or that the bottom sprung is noisier than top sprung. The Victor style bottom sprung are some of the smoothest,quietest valves I have felt/heard.
    I see no advantage or disadvantage to either style. As has been said before the advantage is to be found in the quality of the workmanship for either style. I have played many top sprung horns that the valve action was no better and in some cases much worse than the long broached bottom sprung Director models. But Conn did continue to make some models with the top sprung design, in several different configurations, all through the years that they produced bottom sprung models,They must have seen something positive in both designs.
    If you are getting a lot of noise make sure everything is tight and that everything is seating properly,top and bottom caps,finger buttons,stems if top sprung also check your top cage caps and on all models lube your guides whatever style they are for smoother, quieter valve action.
    Tom Hodges
    1918 Conn 2F Tenor Horn
    1921 Conn Victor New Wonder
    1923 Conn 22B New York Symphony
    1941 Conn 36A Concert Grand
    1946 Conn 80A
    1949 Conn 2B New World Symphony
    1950 Conn 28B Connstellation
    1958 Conn 18A Director coprion
    1966 Conn 28A Connstellation
    1969 Conn 60B Super Connstellation

  2. #22
    Forte User nieuwguyski's Avatar
    Join Date
    Aug 2004
    Santa Cruz County, CA

    Re: Bottom sprung / Top sprung Valves

    My observation with Conn is that their top-line trumpets and cornets always had top-sprung valves (at least from the 19-teens on). But whenever they added a "new-and-improved" model, the previous top-line instrument was demoted and frequently converted to bottom-sprung valves.

    On an unrelated note, I remember reading (somewhere) about some of the process Flip Oakes went through in designing his eponymous flugelhorn. One of his decisions was to choose between top-sprung and bottom-sprung valves. Top-sprung valves result in a tighter radius of the front bow, while bottom sprung valves allow a wider radius (yes, you can incorporate a shepherd's-crook-type bend on the front bow to increase the radius, but I'm sure that increases production costs...). As I recall, based on overall performance alone Flip elected to go with bottom-sprung valves.
    J. Notso Nieuwguyski

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