Identify the Mystery Object.

ex machina

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These are for the old type of fuse boxes, which still can be found in older houses.
The new fuse boxes are usually switch-like indeed.

Edit: before those "automatic" ones, the standard disposable ones marked as D-type / Diazed were in use (for that type of old fuse boxes):

https://en.wikipedia.org/wiki/IEC_60269
Yup, I do remember the old school disposable fuses. Makes sense that someone would make a safety version.
 

357mag

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Nov 27, 2020
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457
It's the whole object.
There is one item not shown needed to use it.
2021-05-05 21.45.45s.jpg
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ektar

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Puh. It's entirely possible that I've temporarliy sidelined the brain cells necessary to sort this out right now. I've spent the day in the attic dragging stuff out and new stuff back in. Thank goodness I'm short, or I'd have hit my back even more times. Carry on.
 

357mag

Mu-43 Veteran
Joined
Nov 27, 2020
Messages
457
Is the correct answer.
This model uses a balloon that you blow up first, then you attach the balloon to the test tube and let the air from the balloon go through the test tube.
2021-05-05 21.46.45.jpg
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