25 Aug
2011
25 Aug
'11
11:32 p.m.
On 26/08/2011 05:03, Dave Caroline wrote:
That redish plastic is a bit of "flexible
pcb" and is normally made to
order as the copper traces are internal to its structure when
finished, Ready made used to be available for straight wiring, we got
ours from Gore many years ago
In this case I don't think it is. Sometimes small pins like that are
sold mounted on Kapton tape to preserve the spacing, and make it easier
to assemble. I think that example is just pins that were sold by the
inch rather than the unit, and I suspect . I've certainly seen things
like that sold in electronics catalogues like Farnell's in the past.
Kapton tape is a kind of thin flexible polyimide tape which is
heat-resistant and non-stretchy. You can buy self-adhesive Kapton tape
to hold things together, or to mask off areas, for soft-soldering. Your
favourite(?) auction site is a good source, but Farnell and presumably
other suppliers stock it.
However it also used to be possible to get flexible PCB material for
etching; Farnell used to stock that too, though I can't find it in the
catalogue now. I can't see how it would help with this need, though.
The tracks can easily be on the normal PCB.
On Fri, Aug 26, 2011 at 4:42 AM, Jim Brain <brain
at jbrain.com> wrote:
> I'm struggling with designing adapters for situations where things sit right
> above a PCB (like the CBM 1541-II PCB under the disk mechanism) where there
> is not enough room for a:
>
> Header
> PCB
> Socket
> IC
>
> And sometimes not enough for even:
>
> Header
> PCB
> IC
>
> A while back, I found a pic of a "low profile" header option.
>
> Pic: http://postimage.org/image/2o6zinnk4/
>
> Notice how the header pins are attached to a plastic "film"? Does anyone
> know what that is called, or better yet, have a source for this type of
> header?
>
> Jim
>
> --
> Jim Brain
> brain at jbrain.com
> www.jbrain.com
>
>
--
Pete Peter Turnbull
Network Manager
University of York