[Boatanchors] Blowing fuse on Valiant, update
K0DAN
k0dan at comcast.net
Mon Dec 31 16:51:12 EST 2007
On second thought, you might test any of the big filter caps in the power
supply. I know you said you just replaced them with new (they're new, as
opposed to N.O.S., right?), but if all is well until the recitifier starts
to conduct, the power supply caps are very suspect as the source for the
short. Hopefully so, as they'll be much easier to troubleshoot & replace
than the choke or other stuff downstream.
Good luck.
Dan
K0DAN
PS Keep those fuses at low amperages!!!
----- Original Message -----
From: "Joe Roth" <wc4r at lycos.com>
To: <boatanchors at mailman.qth.net>
Sent: Monday, December 31, 2007 3:32 PM
Subject: Re: [Boatanchors] Blowing fuse on Valiant, update
>
> It all tests fine with out the rectifier tube, V21. Tube begins to
> glow for 10 seconds and then pops the fuse.
> I don't know how to "test" the tube without another so I think I best
> check the tube socket voltages and see what turns up.
> Joe
> ---------[ Received Mail Content ]----------
> Subject : Re: [Boatanchors] Blowing fuse on Valiant
> Date : Mon, 31 Dec 2007 15:22:23 -0600
> From : "K0DAN"
> To : "Joe Roth" ,
> Check rectifier tube. May short after warmup.
> GL es 73
> Dan
> K0DAN
> ----- Original Message -----
> From: "Joe Roth"
> To:
> Sent: Monday, December 31, 2007 2:56 PM
> Subject: [Boatanchors] Blowing fuse on Valiant
> >
> > I have a Johnson Viking Valiant. It worked fine. I know I should
> > replace the original caps, so I got the kit from K1TLI and did just
> > so.
> > I triple checked my wiring, etc. But now it bows F2 (primary for
> T2).
> > It blew twice now. Both times it took about 5-10 seconds before it
> > popped. There was not any hiss, smoke, or cracks. Quietly the tubes
> > lit up as normal and then it shut down.
> > Suggestions on trouble shooting from the experts? Bad 6BY5 maybe? I
> > would more than welcome a phone conversation as well if needed.
> > TNX Happy New Year!
> > Joe-WC4R
> > www.wc4r.com
> > www.rothweb.net
> > www.williamsburgwx.com
> > _______________________________________________
> >
> www.wc4r.com
> www.rothweb.net
> www.williamsburgwx.com
> _______________________________________________
>
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