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    st-70 blew fuse and rectifier while setting the bias

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    pscottlowe

    Posts : 37
    Join date : 2011-09-04

    st-70 blew fuse and rectifier while setting the bias

    Post by pscottlowe on Mon Sep 19, 2011 1:28 pm

    i just replaced a blown rectifier and while setting bias the new rectifier blew and the fuse also went at same time . i pulled the fuse and upon inspection i noticed the fuse was only rated at .5 amp / 240 vp. and i think it should be 3. amp . is this common that this could happen or should i take it to a tech?

    DynakitParts
    Admin

    Posts : 181
    Join date : 2008-11-30

    Correct Fuse

    Post by DynakitParts on Mon Sep 19, 2011 2:46 pm

    The correct fuse rating for the ST-70 operating @ 240 vac would
    be 1.5 amps...This should be a SloBlo type fuse. Also referred to
    as a time delay fuse.

    If this size fuse blows...then it time to find a tech.

    Kevin @ Dynakit

    pscottlowe

    Posts : 37
    Join date : 2011-09-04

    Re: st-70 blew fuse and rectifier while setting the bias

    Post by pscottlowe on Mon Sep 19, 2011 8:41 pm

    thank you i replaced the fuse and rectifier and reset bias and its running very well thank you .

    j beede

    Posts : 316
    Join date : 2011-02-07
    Location : California

    Re: st-70 blew fuse and rectifier while setting the bias

    Post by j beede on Mon Sep 19, 2011 9:50 pm

    I run 3A slo-blo in the Mark III and ST-70.

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