The Dynaco Tube Audio Forum

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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


3 posters

    stepped attenuator

    baddog1946
    baddog1946
    baddog1946


    Posts : 319
    Join date : 2010-02-03
    Location : Costa Rica
    • Post n°1

    stepped attenuator Empty stepped attenuator

    Post by baddog1946 Sun Apr 22, 2012 1:28 pm

    I found this alternate stepped attenuator a while ago and now that I have tried it I find it works very well. Good price too.
    Baddog

    http://www.ebay.com/itm/250894179327?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
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    Bob Latino
    Bob Latino
    Bob Latino
    Admin


    Posts : 3262
    Join date : 2008-11-26
    Location : Massachusetts
    • Post n°2

    stepped attenuator Empty Re: stepped attenuator

    Post by Bob Latino Sun Apr 22, 2012 2:14 pm

    Hi George,

    It looks like a good value. Just to clear, that stepped attenuator is physically too large to fit in the stereo/mono slot of an ST-70 or the VTA ST-120. It is about 1 1/4 inches in diameter (30 mm) and would fit OK into the depth of an ST-70 chassis (which has about 1 5/8 inches of depth) but you would have to drill a 10 mm hole in the chassis somewhere to mount this attenuator.

    The VTA stepped attenuator is about 13/16 inch in diameter (about 20 mm) and fits into the stereo/mono slot with only a couple of millimeters to spare ..

    Bob
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    baddog1946
    baddog1946
    baddog1946


    Posts : 319
    Join date : 2010-02-03
    Location : Costa Rica
    • Post n°3

    stepped attenuator Empty Re: stepped attenuator

    Post by baddog1946 Sun Apr 22, 2012 4:46 pm

    Hi Bob:
    Yes, I tried it in a st70 standard chassis it is not practical for it. I am using it in one of my custom chassis but it should fit nicely in all the preamps.
    BD
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    Roy Mottram
    Roy Mottram
    Roy Mottram
    Admin


    Posts : 1839
    Join date : 2008-11-30
    • Post n°4

    stepped attenuator Empty Re: stepped attenuator

    Post by Roy Mottram Mon Apr 23, 2012 7:04 pm

    looks identical to the ones I use in my preamps (SP14 & SP12), different supplier, but they both come from HongKong, and takes about 3 weeks.
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    • Post n°5

    stepped attenuator Empty Re: stepped attenuator

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