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'I Need a PC Disk Drive Power Connector Source'
1999\01\08@075304 by mjurras

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Hi all,



I need +5V for my PIC And realated circuity inside a PC. Does anyone
know where I can purchase the pins and housings so that I can connect
to a disk drive power connector?

Thanks,

- -Mark




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1999\01\08@110055 by Bob Drzyzgula

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PLEASE double-check this stuff for yourself
at http://connect.amp.com. I could have made
a typo, etc...

All this stuff should be available from either Digi-Key,
Allied or Marshall. The EI stuff may not be in their
catalogs or websites; you might have to talk to a human
to get prices.

AMP parts:
5.25" Disk drive type:
(note that the gender of the housings are the opposite
of the gender of the contacts; pins go in the "Cap",
and sockets go in the "plug".)

"Commercial Mate-N-Lok"
Socket Housing/plug: 1-480424-0
Pin Housing/cap: 1-480426-0
Pin Contact, tin, for 24-18 AWG: 60618-1
Socket Contact, tin, for 24-18 AWG: 60617-1

There are several crimp tools you can use for these. If
you're going to do a lot of them, you might get the
high-end AMP Certi-crimp tool, that costs over $300. The
ProCrimper II will cost about $150. You can probably get
a non-ratcheted tool for under $20.

3.5" Disk drive type:

"EI (Economy Interconnect) Series"
Contact Housing: 171822-4
Socket Contacts, 26-20AWG: 170204-1

These usually don't mate with wire-applied
connectors, although such are available.
The part is 172211-4. 170429-1 is the
pin contact.

Generally, you should be able to connect
them to any 2.5mm pitch (not 2.54mm)
header, but the latching right-angle
through-hole header is 171826-4.

For the EI Series stuff, you might have
a little more trouble finding inexpensive
crimp tools. The low end seems to be the
Certi-crimp tool, which costs a few
hundred dollars. Others on the list may
know of less expensive alternatives.

There are manufacturers of these parts
besides AMP, but I only am familiar
with the AMP stuff.

Hope that this helps. Again, PLEASE
double-check my part numbers before
ordering.

--Bob

On Fri, Jan 08, 1999 at 04:54:07AM -0800, Mark Jurras wrote:
{Quote hidden}

--
============================================================
Bob Drzyzgula                             It's not a problem
spam_OUTbobTakeThisOuTspamdrzyzgula.org                until something bad happens
============================================================

1999\01\08@115436 by David W. Duley

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In a message dated 1/8/99 4:53:46 AM Pacific Standard Time, .....mjurrasKILLspamspam@spam@YAHOO.COM
writes:

<< Hi all,



I need +5V for my PIC And realated circuity inside a PC. Does anyone
know where I can purchase the pins and housings so that I can connect
to a disk drive power connector?

Thanks,

- -Mark


 >>

Hi Mark,
Check out:
http://www.kristamicro.com/shopperindex.html
They have all things PC in wholesale quantities and prices.

Good Luck
Dave Duley

1999\01\09@173748 by paulb

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Mark Jurras wrote:

> I need +5V for my PIC And realated circuity inside a PC. Does anyone
> know where I can purchase the pins and housings so that I can connect
> to a disk drive power connector?

 PCB mount version (rather conveninent if you have a PCB!) cheap at:
   http://www.vorlac.com.au/vorlac/vorlac1.htm  - Well, they had them
a while back.
--
 Cheers,
       Paul B.

1999\01\14@230342 by Steve Jones
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Why not just go get a $2.00 power "Y" adapter, and butcher it?!

Admittedly, I missed the original post, but this sounds like the easiest
solution...


-Steve


{Original Message removed}

1999\01\15@001038 by Mark Willis

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Easy enough to hack a 1/2 height drive bay cover to put 3 binding
posts out there for Ground +5V and +12V, so your entire PIC project can
be outside your closed PC, of course the original post's for once the
project's debugged not for earlier <G>.

 Mark

Steve Jones wrote:
>
> Why not just go get a $2.00 power "Y" adapter, and butcher it?!
>
> Admittedly, I missed the original post, but this sounds like the easiest
> solution...
>
> -Steve
>
> {Original Message removed}

1999\01\15@115015 by paulb

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Steve Jones wrote:

> Why not just go get a $2.00 power "Y" adapter, and butcher it?!

 I was actually tempted to mention that.

 I don't know what outlets you have "over there", but the minimum price
for that adaptor around here is about $5.00, Dick Smith wants $9.95 and
I've seen much worse.  The only place I've obtained such fittings
anywhere near your figure (translates to $3.00 here) is the disposals
outlet I quoted.
--
 Cheers,
       Paul B.

1999\01\15@115023 by paulb

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Mark Willis wrote:

> Easy enough to hack a 1/2 height drive bay cover to put 3 binding
> posts out there for Ground +5V and +12V, so your entire PIC project
> can be outside your closed PC, of course the original post's for once
> the project's debugged not for earlier <G>.

 Now that's hacking!

 One of my little tricks relating to Amateur Packet Radio is to power
the radio (generally, a handheld with current draw < 1.5 Amp) from the
computer using a 6.5mm (¹") "phone" jack mounted on the back panel,
generally in a vacant "DE" connector knock-out.

 I don't really advise this, as "hot-plugging" can easily crash the
computer, and I would be worried about Mark's suggestion for similar
reasons.  In fact, you can "kill" the power supply, *usually* only
temporarily, by the impulse from connecting a large discharged supply
capacitor.

 In fact, I used a "Y" adaptor for this purpose, also a 6-hole ferrite
choke and a bypass capacitor at the socket to avoid exchange of
undesirable dataforms.  Many SMPSUs however have an unused second 3¸"
FD connector.

 My present "cheap" source of these adaptors is discarded dead CPU
fans!  OK, OK!  So I'm a scavenger!
--
 Cheers,
       Paul B.

1999\01\15@122516 by keithh

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http:\\http://www.cpc.co.uk
do a little gadget that screws to a PC slot.
6.36 UKP.

It plugs into a FDD poswer plug on the inside,
which drives a rgeulator chip (set to your
desired voltage) and on the outside is a wire
and a 4-way power plug (4 sizes).

A neat way of getting power to projects without wall warts.

I also extracted 12 and 5 volt power via a 9-way D
in a spare serial port hole in my PC.
Used it to drive my teletext project.

Mind you, connectors on cables are inclined to fatigue
and snap. I managed to get some connectors that are
the ones used on the FDD side of things.

Alternatively, pick up an old 5.25" FDD and unsolder
the necessary connector.

Cheers, Keith.

1999\01\15@231444 by Mark Willis

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Paul B. Webster VK2BZC wrote:
{Quote hidden}

 Same idea can be used with a regulator (off the 12V line to run a 5V
PIC, for example) per Keith Howell's idea (In fact that's probably a
better method for newcomers at least, as it gives you current limiting
and some protection from noise! <G>)

 Those "Y" adapters are available for $0.79 IIRC at
http://www.computergate.com, Paul;  Mailing costs wouldn't make it good to mail
less than 20 or so at a shot, but that might still be relatively
inexpensive compared to $6ish per connector!  The connectors for the
ends can be bought, also, you supply the wire <G>

 Also, I wouldn't advise hot plugging here, either (When I do embedded
projects, they stay plugged in and I run them off the Embedded PC's
power supply, usually I screw the binding posts down on the wires
instead of using banana jacks as I have cats here!)  Best short
protection for that type of setup is to NEVER hot plug, it's also
definitely hard on the equipment to hot plug.

 Getting spoiled having done this for so many years I guess <G>  You
make assumptions that not everyone else makes, etc...

 Mark

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