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    Cap for VTA ST-70 PS



    Posts : 15
    Join date : 2012-01-01

    Cap for VTA ST-70 PS

    Post by SuperB on Mon Mar 26, 2012 6:46 am

    If cap with voltage rating 330VAC (~460VDC), can I use it as power supply cap (40mf) right after the 5AR4 in VTA ST-70??



    Posts : 1265
    Join date : 2008-11-30

    Re: Cap for VTA ST-70 PS

    Post by tubes4hifi on Mon Mar 26, 2012 6:18 pm

    not unless you want it to blow up, the cap after the rectifier needs to be rated at least 500vdc !!


    Posts : 131
    Join date : 2009-12-23
    Location : Valley Stream, NY

    Re: Cap for VTA ST-70 PS

    Post by anbitet66 on Mon Mar 26, 2012 10:13 pm

    That capacitor sounds like a non-polarized electrolytic used for motor starting or running. Don't use it for power filtering. That is not what it was meant to do. It may work, but as previously stated, the voltage rating is too low and it may fail prematurely.


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