[sdiy] 16pin dip header -- mild warning

[Cynthia Webster]

Hi Gang!

I'm making a few modules with 16-pin sockets in back that are designed with
future expansion in mind.  In other words, they are empty sockets on the PC
board that may someday see a 16-pin jumper connected off to other future
modules in the system.

Because they are basically empty, I thought to use gold contacts so as to be
as ready as possible for a future 16-pin DIP jumper.  Can anyone recommend
anything else that I could be doing to facilitate this?

I've looked at the little box covers hat are available to cover DIP headers,
and wonder if snapping a little DIP header Box Cover over these empty gold
sockets would be a good thing or a bad thing (trapping moisture maybe?)

any suggestions?

Thanks!

Cynthia

> on 1/9/03 8:48 AM, greg montalbano at greg.montalbano at ucop.edu wrote:

> Thought this might be a good place to point out that, as they age,
> DIP connectors can be the source of deteriorating performance;  of the
> synths I've serviced over the years, the number two cause of intermittent
> or total failure of one or several features has been traced to the DIP
> headers.
> Like any contacts, these will oxidize over time;  and they can add stray
> capacitance to critical lines at all the wrong times.
> (Some machines, like the Siel DK600, have a total of several HUNDRED point
> -to-point connections in the form of DIP cables;  frequently, my service of
> such machines has simply been cleaning/deoxing all the plugs & sockets).
> 
> Not saying they shouldn't be used;  they ARE damned convenient.  Just
> pointing out a possible problem, down the road...
> 
> ~GMM
> 
> 
> At 07:54 AM 1/9/03 -0800, you wrote:
> 
>> --- mark verbos <a0284520 at addcom.de> wrote:
>>> 
>>> The Wiard and some Buchla modules use these. Much
>>> nicer than spagetti. (well
>>> not as tastie probably!)
>> 
>> Thanks, I appreciated everybody's input.  The Emu
>> modular also used dip headers/sockets/ribbon cable for
>> power distribution using a bus configuration.  I use
>> them for power distribution as well, but, in a
>> hub/spoke configuration.
>> 
>> Thanks again,
>> Ethan
>> 
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