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Re: [Homebrew_PCBs] Through hole solutions?

2004-03-03 by Stefan Trethan

> I'm finding that I have to account for that as much as I can routing
> but not always able to, drill over size and wire through before
> fitting the connector or using a lot of via's. I'm presently trying
> to produce  3.5*2." LPT opto isolator with two db25's, 4 9 pin RN's,
> four 16 pin opto's, one 4 pin opt and a bunch of led's and my amatuer
> status is showing and it looks pretty ugly right now......
>
>
> Any obvious options that I've missed? the press in through hole
> grommit things and tooling seem to be more than I want to pay.
>
> thanks..
>

Most simple solution:
Do not make a design with a connection on the top side.
Do everything to avoid this.
it IS possible.

you can solder the two-rows connectors on the top, use one with longer
legs and keep the plastic 2-3mm above the pcb top.

the other things (wires etc) were suggested. i would not use eylets
(too expensive).

DB25 are available in a version where you can solder the top two rows 
also,
they are the ones with no plastic angle and turned, bent pins.
I have not seen them for a while now, maybe they are obsolete.

ST

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