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Homebrew PCBs

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Message

Re: 1 and 3 mil lines

2009-03-07 by warrenbrayshaw

"Derward Myrick" ..> wrote:
> 
  Also the one labeld five mil
>   is the three mill and the one labeled 3 mill is the 5 mill.
>   http://www.denhamsprings.com/pcb_1mil.jpg

Assuming the IC is a soic package with 0.050 pin spacing I measure the larger traces to be around 12 mil. This is the same number I get if I assume the three square pads below the ic and slightly left mount a preset with 0.2" x 0.4" spacing.  All guesses.

Could you let us know the pin spacing of the ic used so that we have a scale. 

Thanks 
Warren

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