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/diy/ - Do-It-Yourself

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>> No.2043715 [View]
File: 42 KB, 654x646, 1594972770474.png [View same] [iqdb] [saucenao] [google] [report]
2043715

>>2043656
what are your expectations as to trace width, density, layer count, do you want the layers of the boards connected at through-holes, how do you feel about darkroom work or strong acids that stain, do you have a toner-type printer, what's your budget, etc. muriatic acid and 3% H2O2 can be mixed in the correct proportions to make an etchant solution you can reuse and regenerate. sharpies in pooper work well to pattern a very simple low-resolution board. if not using SMT you will need a drill press and cross slide table to get clean boards with small, evenly spaced holes. it's current year, take the SMTpill pls

>>2043663
they become DEDs
>current limit
correct, pic
>what's common
common = reference = 0V = = what probably should not properly be referred to as "ground" because of potential confusion with protective earth
>I plug out the two
beware, some opamp and digital circuits care about power sequencing. see datasheets, read all footnotes. better to turn off the outputs before connecting your circuit, then turn them on at the PSU once you've checked them over

>>2043697
having them made is ideal for smaller runs too

>>2043709
>R was an open circuit, would Vs=Vr?
what voltage drop does the typical V-I curve for that diode type say



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