Heath electrolytic problem

[Lloyd Smith]

Years ago in a vibrator power supply on a six meter transciever
I had an explosion like an M-80 go off in the power supply.  Replaced
the cap and all was well.
Lloyd - wa9nla

William J. Graham wrote:

> that would have been my first guess as well.. while physical leaking
> is real common I've seen almost no "explosions" that weren't
> attributable directly to incorrect hook-up.
>
> Of course, I'm far from the master at this game that some here are.
>
> He did say however, that it was the 40 mfd 450 that "blew" not the <
> smaller caps that are likely to be on the bias supply.
>
> Given Heaths usual use of voltage doublers and tripplers with
> caps that don't have either end at ground anything is
> possible.
> 73
>
> Bill
> >The following is the message that was responded to.
> >
> >
> >Bob;
> >The small caps may be for the bias supply and go in with the positive end
> >grounded. Make sure you didn't put them in backwards.
> >Regards,
> >Ed Richards
> >
> >
> >On Sat, 24 Apr 1999 23:10:24 -0700 ", Bob Ensminger" <bens at valint.net>
> >writes:
> >>I just replaced all electrolytics in SB101 using my other PS from
> >>SB102 and
> >>all worked fine.  I then replaced the 2 small (20 mfd/150v) and the
> >>40
> >>mfd/450V.  I fired it up and all worked for abt 1 minute then the 40
> >>mfd/450v blew sending smoke signals and parafin type wax came out.  I
> >>had
> >>checked the cap and it was 44 mfd but I don't have a checker for
> >>leakage.
> >>Could I have another problem or did I just have a bad cap I installed.
> >> I
> >>have several more used caps to replace.  I will appreciate any help
> >>on
> >>this.
> >>Thanks,
> >>Bob, KQ7J
> >>
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>
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