> (and if you do etch your own board, it's
non-trivial
> to gold plate it).
On Thu, 14 Feb 2013, Chris Tofu wrote:
Well plating can be accomplished in the home shop but
where are you
going to get the gold. Wait for a meteorite?
But it brings up an interesting idea of mine. Couldn't you reverse
plate the gold right off of pins and whatnot? No nasty chemicals, no
mess, no fuss.
just melt down the pins from a few tubes of 4004s.
If I ahd to
make such an adapter in a hurry (== no time to make the
PCB)_, I'd probably put 34 pin and 50 pin wire-wrap headers ont a bit of
square pad board, wire-wrap approrpraity, and fit one of said adapterso
nto the 34 pin header to conenct to the edge connector on the cable.
If I'm
following you, couldn't you cut the card edge from a busted
drive, solder that to an appropriate board (I would have to assume the
spacing is identical), solder a header connector, preferably right
angle, to the opposite side of the board, then solder jumper wires where
appropriate?
I would use dual row headers. WHY bother making a card edge?
You are going to plug a cable onto that, so WHY bother making a card edge?
Anybody with a vise or a hammer can make cables with whichever connector
you want!
Are the trash bins no longer full of 34 pin cables with every combination
of card edge and header?
When I cleared my office, I sold a tote full for $1. BUT, I kept the
empty tote.
Like IEC power cords, they ARE worth something IN THEORY, but where do you
find anybody who doesn't have more than they need?
My first 5.25 to 8 adapter was one of those white plastic "plug-in
breadboard" with a 34 pin dual row header and a 50 pin dual row header.
Treacherously unreliable for a lot of things, but fine for experimenting
with pinout.
Then I found that so many of the pins went through with their adjacent
ones, that my next cables were just crimped on connectors ith a few wires
switched around. Admittedly, I was ignoring TG43, etc. For a fancy one
with that, there are commercial ones available now. (There may have been
then, but I didn't know where to look)