Electronics > Projects, Designs, and Technical Stuff
Adapter Box for (all) your Lab needs
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t1d:

--- Quote from: gdewitte on November 11, 2018, 05:59:33 pm ---Correct: only milled through the copper on the ground plane side; the line on the pad side was for reference.

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I must laugh... I know myself... I would have way over-thought this... Designed a custom PCB, paid for it, waited for it, etc... When all I needed was a positive and negative plane.

Simply excellent, pun intended, on your part... A single piece of copper clad, divided, and a few holes...

Quirky, on mine. lol
gdewitte:

--- Quote ---[size=0px]I must laugh... I know myself... I would have way over-thought this... Designed a custom PCB, paid for it, waited for it, etc... When all I needed was a positive and negative plane.[/size]
[/size]
[/size][size=0px]I have to admit that a custom PCB was my first thought and I was considering a cutout for the Powerpoles, including a fuse holder for the positive plane, getting a right-angle PC mount 5.5 mm jack, silk screening spiffy labels, … And then I thought "Or, I could just mill the copper off the middle of a copper clad PCB and solder some parts on." [/size] :-+
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gdewitte:
And, clearly, I need to work on the correct method for inserting a quote  :-//
Microcheap:
Neat  :-+, I would just add maybe a micro USB connector for completeness
Gixy:

--- Quote from: dangrie on November 11, 2018, 01:52:54 pm ---I also thought about the LED. How do you drive it with the varying input voltages? I thought about using an LM234 as a constant current source over a wide voltage range (certainly the 2-30V I use 99% of the time). It would also be protected up to 20V of reverse voltage which would help keep the circuit simple.

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Yes, simple current source (LM234 or opamp)
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