EEVblog #1336 - DT71 LCR Tweezer Destructive Teardown + Lab Update

[EEVblog]

Destructive teardown o nthe Miniware DT71 LCR meter Tweezers
Plus a lab move update.

[maginnovision]

Finally the serve their most useful purpose, a destructive teardown. Can't wait to watch(when I have time later).

[SilverSolder]

A lot of nice industrial design and ergonomic engineering work went into this product.  What seems to be missing is an amount of "voltnut wizardry", to lift it to the next level!

[olewales]

Hope there will be strong community support for this in form of open fimrware project. There is not much hardware in AVR component tester either yet devs managed to pull off impressive functionality using it. Clever utilization of those 12bit ADC and DAC could yield amazing results. Even just fixing bugs (functional secondary parameters, predictable auto mode behaviour) would make this device very usable. Absoulte accuracy for this kind of device is not essential anyway

[CChin254]

IC Identification for this device:

Block Diagram:

[ckambiselis]

Destructive teardown o nthe Miniware DT71 LCR meter Tweezers
Plus a lab move update.

Could we have a few high-res pics of the traces on the twizzers, just to check what goes where, so we can make a cable to connect them to a classic LCR meter?

Thanks

[jonovid]

reverse engineer the tweezers hinge design. 7:15 on the video.
duplicate or similar by 3D printing the hinge, add your own gold plated tips & some silicone test leads plus banana plugs.
hey presto you have your ideal test probes.   

[Bud]

With this tweezers with neodymium  magnets on the bench you now have to worry about keeping them away from metal tweezers to prevent magnetizing the metal tweezers.

[ckambiselis]

With this tweezers with neodymium  magnets on the bench you now have to worry about keeping them away from metal tweezers to prevent magnetizing the metal tweezers.

Well if you are using quality stainless steel tweezers, that shouldn't really be a problem.

[SilverSolder]

With this tweezers with neodymium  magnets on the bench you now have to worry about keeping them away from metal tweezers to prevent magnetizing the metal tweezers.

Well if you are using quality stainless steel tweezers, that shouldn't really be a problem.

I have found even the tiny amount of magnetism in high quality stainless can be an annoyance.   I even have a demagnetiser on my desk to solve that problem!

[Cnoob]

you get Peek , Carbon+ Peek and ceramic tips for tweezers which should solve the magnetism issue.

[SilverSolder]

you get Peek , Carbon+ Peek and ceramic tips for tweezers which should solve the magnetism issue.

They look reassuringly expensive! 

But if it is the difference between something that works, and not...

[Cnoob]

you get Peek , Carbon+ Peek and ceramic tips for tweezers which should solve the magnetism issue.

They look reassuringly expensive! 

But if it is the difference between something that works, and not...

Not cheap but I like the ideal-tek ones and they  are great for holding down 30AWG wire without out damaging the insulation when doing point to point wiring on square/round pad boards.