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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


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    Where on a ST-120 would you put a Hobbs meter?

    deepee99
    deepee99
    deepee99


    Posts : 2244
    Join date : 2012-05-23
    Location : Wallace, Idaho
    • Post n°1

    Where on a ST-120 would you put a Hobbs meter? Empty Where on a ST-120 would you put a Hobbs meter?

    Post by deepee99 Sun Jul 21, 2019 6:39 pm

    Most Hobbs (hour) meters I've seen work on a range of 10-80 VDC. Three questions: anywhere a guy could tap one with those specs?; two, are there any rated for AC - 120VAC being the ideal, of course; three, would the mechanical meter's operation interfere with the voltage it's straddling?
    Thanks
    deepee
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    Dale Stevens
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    Dale Stevens


    Posts : 201
    Join date : 2014-07-06
    Age : 75
    Location : Loris, SC
    • Post n°2

    Where on a ST-120 would you put a Hobbs meter? Empty Re: Where on a ST-120 would you put a Hobbs meter?

    Post by Dale Stevens Mon Jul 22, 2019 11:30 am

    http://www.amazon.com/Hour-Meter-120-AC-Volts/dp/B0027NLO8K/ref=aag_m_pw_dp?ie=UTF8&m=A2WKIE7LC6QP0S

    Dave, here u are. I mounted mine on an outboard VU panel. Just plugged it in to a SWITCHED outlet on the pre. I note the hour readout on tube box flap. easy tracking. Dale
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