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Re: [Homebrew_PCBs] RE: making vias (was: Re: Plating thruholes.)

2004-08-20 by Stefan Trethan

> Pin headers are good reliable connectors,  particularly if shrouded  
> connectors
> are used,  and if they're also using ejector levers there isn't much  
> stress
> on the cabling.

agreed. especially if the second "foldback" clip is _not_ used with ribbon
cable headers the strain is too much. if the user pulls at the edge the  
outermost
wires are pulled out of the connector. the lever type is VERY neat.  
(remember
there are different lever length for "with second clip" and without.)


> I think less well of card-edge connectors.  You'll have problems with  
> tarnish
> on the card,  and lack of reliability eventually with the connectors over
> time.  Notice that card-edge was the way to go with the old 5.25" and 8"
> floppy drives,  and early hard drives as well.  Nowadays _all_ 3.5"  
> floppy
> drives and all IDE and SCSI hard drives use pin connectors.  That should  
> tell
> you something.  :-)

basically i agree, i distrust them. Though if you use drives for a example
i might point out that in home-pcs the PCI (and AGP, ISA,...) cards are  
edge
connectors. I wouldn't trust them, especially without gold plating.
If they get wet you have constant problems (even with gold plating). I have
a watercooled PC and i know what i talk about.

ST

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