jon s wrote:
> I am relaying this for my Father (AI9U) who does not subscribe
>
> Last night he was back at his station after a 10 day period of non-use
>
> FT920/Alpha 87A/3 ele Steppir/40_80 Dipole
>
> With the Amplifier Off - but still in line he was using the tuner to match
> the dipole, when an "incredible bang" (his words) occured in the amplifier,
> tripping the 220V breaker. Upon reseting the breaker, the Alpha powered up
> but would not do much else
>
> Anyone ever have something like this happen?
>
> I'm wondering how in the world it could have happened with the power switch
> Off.
>
> Anyone care to speculate on a cause?
Parasitic oscillation!! They get blamed for everything on here, but
perhaps even they are not that troublesome.
Is sounds like something has probably shorted the incoming mains supply
to me. I suspect a look will soon find the marks of something having let
the magic smoke out.
--
David Kirkby,
G8WRB
Please check out http://www.g8wrb.org/
of if you live in Essex http://www.southminster-branch-line.org.uk/
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