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    A question of tubeage ref the VTA ST-120 drivers

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    Bob Latino
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    Posts : 2653
    Join date : 2008-11-26
    Location : Massachusetts

    Re: A question of tubeage ref the VTA ST-120 drivers

    Post by Bob Latino on Tue Apr 03, 2018 10:29 pm

    chefothefuture wrote:Since the original question was about preferred driver tubes in a VTA ST120, will 7199s even work in one?

    No
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    peterh

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    Location : gothenburg, sweden

    Re: A question of tubeage ref the VTA ST-120 drivers

    Post by peterh on Wed Apr 04, 2018 2:56 pm

    Bob Latino wrote:
    chefothefuture wrote:Quite true, but I thought the purpose of the VTA board was to get away from the 7199s...

    I realized my previous comment was in error. Forget the topic referred to all driver types. Many apologies.

    Yes > Why use a driver board using driver tubes (7199) that are not made anymore ? The price of the remaining crop of 7199's keeps getting higher and higher each year. Right now the average price of an NOS 7199 is maybe $35 or $40. Also there is no other driver tube that you can substitute for a 7199 with a direct plug in ? Sure - You can use a 6GH8A as a replacement driver tube with a suitable adapter but the adapters are $10 and up per tube.

    Bob
    Sorry, it was ment as a joke , note the smiley.
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    kevinmi

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    Join date : 2009-11-17

    Re: A question of tubeage ref the VTA ST-120 drivers

    Post by kevinmi on Sun Apr 08, 2018 7:56 am

    I bought a bunch of 12au7 variants a while back, and finally got around to trying them out on my ST-120. I found a vintage GE 5963 to be the best overall tube in the center while using the Gold Lion KT-88's. Even beats out a vintage Sylvania 12bh7 I recently purchased

    chefothefuture

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    Join date : 2018-03-28

    Re: A question of tubeage ref the VTA ST-120 drivers

    Post by chefothefuture on Sat Apr 14, 2018 2:23 am

    Well, after a bit of a wait, the Treasure CV181 arrived. Put it in the center position and it certainly changed the sound. Frequencies seem more distinct. Things like reverb in a recording seem to jump out. Stereo seems wider. Maybe that's improved soundstage? But there are some odd things too- the bass on Yes's "Long Distance Runaround" sounds mildly flanged, though my ancient mono Daphis et Chloe sounds superb. Also- the tube flashes at power up but then dims to a normal glow. So I like the tube but I hope it lasts a while.
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    kevinmi

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    Join date : 2009-11-17

    Re: A question of tubeage ref the VTA ST-120 drivers

    Post by kevinmi on Sat Apr 21, 2018 2:09 pm

    I just bought a vintage Phillips branded Amperex Holland 12au7 that is phenomenal in the center spot!

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