[bars] When is a fuse not a fuse, redux?

[KC1SOZ]

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.

73,
KC1SOZ
Juan


On Mon, Oct 16, 2023 at 3:45 PM TimC <k1dc.radio at gmail.com> wrote:

> The fuse was tested out of the holder. ;-)
>
> 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.
>
> 73,
>
> T.
>
> On 16-Oct-23 11:40, KC1SOZ wrote:
>
> 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. :)
>
> Or maybe someone put a slo-blo fuse where there should be a regular fuse?
> Got a mugshot of the accused?
>
> 73,
> KC1SOZ
> Juan
>
>
> On Mon, Oct 16, 2023 at 11:04 AM TimC <k1dc.radio at gmail.com> wrote:
>
>> Huh -- Learn something new every day.
>>
>> 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.
>>
>> 73,
>>
>> T.
>>
>> On 16-Oct-23 10:56, KC1SOZ wrote:
>>
>> You may be dealing with a fusible resistor.
>>
>>
>> https://www.elprocus.com/fusible-resistor/#:~:text=A%20fusible%20resistor%20is%20one,the%20event%20of%20an%20overload
>> .
>>
>> 73,
>> KC1SOZ
>> Juan
>>
>>
>> On Mon, Oct 16, 2023 at 10:42 AM TimC <k1dc.radio at gmail.com> wrote:
>>
>>> 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.
>>>
>>> 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.
>>>
>>> Is this a known/common occurrence or do I live in some weird hole in the
>>> universe where these things happen?
>>>
>>> 73,
>>>
>>> T.
>>> --
>>>
>>> Courageously sent from a non-Apple device that *includes* a headphone
>>> jack.
>>> ------------------------------
>>> <https://k1dc.com/img/k1dc-qsl-card-front.png> Tim Carter - K1DC (was
>>> KC1RET)
>>> +1.978.710.0133 <1.978.710.0133>
>>> k1dc.radio at gmail.com <kc1ret.radio at gmail.com>
>>> https://k1dc.com
>>>
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>>
>> --
>>
>> Courageously sent from a non-Apple device that *includes* a headphone
>> jack.
>> ------------------------------
>> <https://k1dc.com/img/k1dc-qsl-card-front.png> Tim Carter - K1DC (was
>> KC1RET)
>> +1.978.710.0133 <1.978.710.0133>
>> k1dc.radio at gmail.com <kc1ret.radio at gmail.com>
>> https://k1dc.com
>>
>> "Computers are incredibly fast, accurate and stupid; humans are
>> incredibly slow, inaccurate and brilliant; together they are powerful
>> beyond imagination." -- *Albert Einstein*
>>
>> Warning: Spelling errors in this message are the product of a poor school
>> system. Pay teachures more than athletes.
>> IMPORTANT: This email is intended for the use of the individual
>> addressee(s) named above and may contain information that is confidential
>> privileged or unsuitable for overly sensitive persons with low self-esteem,
>> no sense of humor or irrational religious beliefs. If you are not the
>> intended recipient, any dissemination, distribution or copying of this
>> email is not authorized (either explicitly or implicitly) and constitutes
>> an irritating social fauxpas. No animals were harmed in the transmission of
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>
> --
>
> Courageously sent from a non-Apple device that *includes* a headphone
> jack.
> ------------------------------
> <https://k1dc.com/img/k1dc-qsl-card-front.png> Tim Carter - K1DC (was
> KC1RET)
> +1.978.710.0133 <1.978.710.0133>
> k1dc.radio at gmail.com <kc1ret.radio at gmail.com>
> https://k1dc.com
>
> "Computers are incredibly fast, accurate and stupid; humans are incredibly
> slow, inaccurate and brilliant; together they are powerful beyond
> imagination." -- *Albert Einstein*
>
> Warning: Spelling errors in this message are the product of a poor school
> system. Pay teachures more than athletes.
> IMPORTANT: This email is intended for the use of the individual
> addressee(s) named above and may contain information that is confidential
> privileged or unsuitable for overly sensitive persons with low self-esteem,
> no sense of humor or irrational religious beliefs. If you are not the
> intended recipient, any dissemination, distribution or copying of this
> email is not authorized (either explicitly or implicitly) and constitutes
> an irritating social fauxpas. No animals were harmed in the transmission of
> this email, although the mutt next door is living on borrowed time, let me
> tell you.
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>
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