<div dir="ltr">FGBs are special kinds of fuses. As far as I can tell, they do not have transparent glass in the tube and they have an indicator that pops out when it's blown. But I can't tell for sure, the info on that designation is kinda sparse.<br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br><div>73,<div>KC1SOZ</div><div>Juan</div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Oct 16, 2023 at 3:45 PM TimC <<a href="mailto:k1dc.radio@gmail.com">k1dc.radio@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<font face="Verdana">The fuse was tested out of the holder. ;-)<br>
<br>
The manual specifies a 'FGB 30 A' fuse. I assume that to mean 30
amps, but I have no clue what the 'FGB' means. There was a 25A
fuse in there so I replaced it in kind. I'll rustle up an image
and post shortly.<br>
<br>
73,<br>
<br>
T.<br>
</font><br>
<div>On 16-Oct-23 11:40, KC1SOZ wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">That would be a first. Are you reading the
resistance with the fuse in or out of the system? I know, dumb
question, but I gotta ask. :)
<div><br>
</div>
<div>Or maybe someone put a slo-blo fuse where there should be a
regular fuse? Got a mugshot of the accused?<br clear="all">
<div>
<div dir="ltr" class="gmail_signature">
<div dir="ltr"><br>
<div>73,
<div>KC1SOZ</div>
<div>Juan</div>
</div>
</div>
</div>
</div>
<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Oct 16, 2023 at
11:04 AM TimC <<a href="mailto:k1dc.radio@gmail.com" target="_blank">k1dc.radio@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div> <font face="Verdana">Huh -- Learn something new every
day.<br>
<br>
I don't think this is what I had -- these are the typical
glass cylinder type. The fuse in the negative line reads
as a short, as expected.<br>
<br>
73,<br>
<br>
T.<br>
</font><br>
<div>On 16-Oct-23 10:56, KC1SOZ wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">You may be dealing with a fusible
resistor.
<div><br>
</div>
<div><a href="https://www.elprocus.com/fusible-resistor/#:~:text=A%20fusible%20resistor%20is%20one,the%20event%20of%20an%20overload" target="_blank">https://www.elprocus.com/fusible-resistor/#:~:text=A%20fusible%20resistor%20is%20one,the%20event%20of%20an%20overload</a>.</div>
<div>
<div>
<div dir="ltr" class="gmail_signature">
<div dir="ltr"><br>
<div>73,
<div>KC1SOZ</div>
<div>Juan</div>
</div>
</div>
</div>
</div>
<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Oct 16, 2023
at 10:42 AM TimC <<a href="mailto:k1dc.radio@gmail.com" target="_blank">k1dc.radio@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div> <font face="Verdana">Almost a year and a half
ago my TS-2000 developed a problem with
intermittent shutdown that eventually graduated to
brick status. After MUCH troubleshooting the root
cause was a power line fuse that had transformed
into a 1.2k resistor. I thought at the time that
this was so weird it had to be a one-off.<br>
<br>
Well... now it's a two-off. My IC-756 did the
exact same thing this morning after some heavy FT8
use and sure enough, another fuse->resistor
transformation. Just to be clear, they don't show
as open, nor short. They read ~1k ohm.<br>
<br>
Is this a known/common occurrence or do I live in
some weird hole in the universe where these things
happen?<br>
<br>
73,<br>
<br>
T.<br>
</font>
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