The Dynaco Tube Audio Forum

Would you like to react to this message? Create an account in a few clicks or log in to continue.
The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


5 posters

    Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Bob Latino
    Bob Latino
    Admin


    Posts : 3185
    Join date : 2008-11-27
    Location : Massachusetts

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Post by Bob Latino Tue Feb 28, 2017 2:32 am

    Hi,

    I have someone that wants to know if a Dynaco tube cage will fit on a VTA ST-120 chassis that uses the Tung-Sol KT120 output tubes. I have no tube cages here to check this out? If anyone is using KT120 output tubes on a VTA ST-120 WITH A TUBE CAGE, let me know if the cage fits on the top without hitting the top of the KT120 ?

    Bob
    DynakitParts
    DynakitParts


    Posts : 217
    Join date : 2008-12-01

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty ST-70 top cover

    Post by DynakitParts Tue Feb 28, 2017 2:56 am

    Bob,
    I don't believe the cover will fit when using the KT120 output tubes. Cover inside vertical clearance is 4.50" from top side of chassis.

    Kevin
    Bob Latino
    Bob Latino
    Admin


    Posts : 3185
    Join date : 2008-11-27
    Location : Massachusetts

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Re: Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Post by Bob Latino Tue Feb 28, 2017 3:00 am

    Hi Kevin,

    Thanks for the info .. I will pass it along ..

    Bob
    Kentley
    Kentley


    Posts : 496
    Join date : 2015-03-06
    Age : 70
    Location : Worcester, MA

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Re: Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Post by Kentley Tue Feb 28, 2017 3:08 am

    The Genalex KT-88 is only 4mm shorter (110mm vs. 114mm) and it fits quite nicely under the cage. The TungSol KT-120, while it will fit, would push the limits. However, if instead of screwing down the cover, you place it firmly in the chassis grooves which gives another half-inch of clearance, it will be quite stable. If needed, cardboard or wooden shims can be easily fashioned to increase stability.
    I've been using the cage this way for well over a year. Works like a charm.
    Using the cage in this manner allows me to adjust bias, and remove the cage for any reason without a screwdriver or hernia.
    Maintarget
    Maintarget


    Posts : 227
    Join date : 2013-02-10

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Re: Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Post by Maintarget Tue Feb 28, 2017 4:08 am

    Bob I have an ST-120 I bought from you and I'm using the KT-120 tubes using and the ST-70 cover i bought from DynaKitParts it fit's just fine and looks great.
    PS I'm not using any shims or anything elese.


    Last edited by Maintarget on Tue Feb 28, 2017 4:10 am; edited 1 time in total (Reason for editing : additional info)
    avatar
    New2Tubez


    Posts : 148
    Join date : 2018-03-20
    Location : NY

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Are you still using KT120s with the Dyna cage?

    Post by New2Tubez Mon Sep 09, 2019 1:49 am

    Maintarget wrote:Bob I have an ST-120 I bought from you and I'm using the KT-120 tubes using and the ST-70 cover i bought from DynaKitParts it fit's just fine and looks great.
    PS I'm not using any shims or anything elese.
    Hi Main,

    Are you still using this setup?
    I'm curious about the KT120's and have the same cage. I'm working through the auto bias board so I won't have to un-do the cage. I'm looking to get a quad and the 120's are actually less than the GL KT88's at this point in time with comparable sonics.

    Thanks for your thoughts,
    Ned
    Maintarget
    Maintarget


    Posts : 227
    Join date : 2013-02-10

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Re: Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Post by Maintarget Thu Sep 12, 2019 6:01 am

    I'm right at 1900 hours on my ST-120 and still enjoying the KT-120s with a 6SN7 in center with Conn 12BH7s on the outboard cage still in place!
    avatar
    New2Tubez


    Posts : 148
    Join date : 2018-03-20
    Location : NY

    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Re: Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Post by New2Tubez Thu Sep 12, 2019 11:51 pm

    Maintarget wrote:I'm right at 1900 hours on my ST-120 and still enjoying the KT-120s with a 6SN7 in center with Conn 12BH7s on the outboard cage still in place!

    After not hearing anything, I ordered some KT88's yesterday afternoon. Later, I saw you replied. I emailed Jim McShane and he was able to make the change to KT120's before shipping.
    So glad you posted back !!! Thanks to you and Jim.

    Sponsored content


    Will a tube cage fit over the Tung-Sol KT120 output tubes ? Empty Re: Will a tube cage fit over the Tung-Sol KT120 output tubes ?

    Post by Sponsored content


      Current date/time is Thu Feb 02, 2023 6:15 pm