Assuming a stepdown ratio of 10:1 of your transformer, for 4 amps in the
primary (input) we would have 40 amps in the secondary. That might be too much
and would have damaged something before the 4 amp would open.
73, Jim wd4air
> ----- Original Message -----
> From: "Hulett, Russell" <firstname.lastname@example.org>
> To: <email@example.com>
> Sent: Wednesday, April 01, 2009 9:22 AM
> Subject: Re: [TenTec] Need advice about OVP for 262G
> > Evidently several years ago, someone suggested installing a 1.5KE15A
> > transient suppression diode with a fuse at the PS output. This seems like
> > a simple solution to me compared to SCRs, added circuits etc. One
> > question, since these diodes will clamp, thus protecting the load ( my
> > Triton IV ) why won't the 4A slow blow on the transformer input do the
> > job.
> > I'm thinking of building the zener and an in-line fuseholder into the
> > cable between the 262G and the 540. That's to avoid modifying either the
> > power supply or the radio. Wonder if anyone else has used that approach,
> > and whether I'm missing something crucial.
> > 73, Curt KB5JO
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