General > General Technical Chat
Tricks of the Trade - knowledge for every day life
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Psi:
You can push the ground spring attachment onto the end of the scope probe with a wire trapped under it.  Very useful when you want to probe something that needs a very short GND connection and you need it to be soldered for 'hands free'.


armandine2:
Real and Imaginary

which is which

https://www.amazon.co.uk/Metrix-MTX3291-Digital-Multimeter/dp/B01M61RW39

especially in purchasing
Kasper:

--- Quote from: Cerebus on November 02, 2020, 04:35:36 pm ---
--- Quote from: themadhippy on November 02, 2020, 03:52:36 pm ---bicarbonate of soda/baking soda and super glue make an instant drying hole  filler

--- End quote ---

Put the powder in the hole first, then drip superglue on, don't try and make a paste and push the paste in, it sets in seconds. Also it gets HOT!.

--- End quote ---

Just came across a video that reminded me of this one.  They do a bit of destructive testing, repair stripped head of screw and even mold a wrench. 

Another trick here is to use WD-40 as a mold release spray.

Super Glue and Baking soda! Pour Glue on Baking soda and Amaze With Results


xmris:
Make bases for small bottles - like flux/lubricants - using foam packaging sheets.
It will keep them stable and no more mess on your workbench :)
eti:
Always *twist* a stranded wire and then solder saturate it into a solid end (and then clean off any flux) and then cut it flush and clean at the tip, before screwing into a terminal block. If possible use captive terminal types, the ones with the ridged moving flat clamp which rides up and down with the screw and applies even pressure across the wire end, otherwise excess tightening causes screw-shaped pits in the wire end, and if it’s not been soldered as above, you get little copper strand ends falling out everywhere, which not only means short circuit risk but means the cross-sectional amperage rating of the end has decreased.
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