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those *SUPER* tiny J2 SCSI drive jumpers, need more - no can

 
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dave
Guest
PostPosted: Mon Dec 18, 2006 4:34 am    Post subject: those *SUPER* tiny J2 SCSI drive jumpers, need more - no can Reply with quote
I must have over a hundred misc jumpers removed from old equipment. of
that entire lot, only ONE of 'em was tiny enough to use to jump the
SIPER-small J2 jumpers on the top of my Seagate ST1181677LW.
unfortunately, I need more of these tiny jumpers - I have four of these
drives in one enclosure.

I can't find jumpers this small ANywhere. even tried using a razor knife
and 'whittling some of the normal ones smaller', to no avail. also tried
cutting up a cat food aluminum tin with tinsnips, and 'folding my own'
jumpers, but that didn't work out right either...jeeze

I'm trying to do the DS (delayed start) 'thing' on the four drives,
staggered, 12 seconds per each number in the chain higher. plus I need
to change a few of the SCSI chain position numbers...

best I can measure (dial caliper), the INFINITELY tiny jumpers I need are

height: .078 inch (approx 2mm)
width (thickness): .075 inch (approx 2mm)
length overall: .141 inch (roughly 3.5mm)
pinholes, center to center: .069 inch (this one only an estimate,
impossible to measure with a dial caliper)

anybody got a dozen or 18 of these things laying around? where CAN a guy
get 'em? Radio Slack was a no-go. no other electronics type stores here,
either. I need the ones for the 'top of the board' J2 jumper settings
(DS, delayed start), but I *think* they might be the same size as the
(also "near microscopic") SCSI chain position numbers jumpers, which MY
'existing jumpers collection' had no useables for...

I'm in north central florida...

thanks for ALL help on this guys :-)

toolie

- -
replies by e-mail, if any, please remove the weirdstuff from my address
before you click 'send' - thanks :-)
- -
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daytripper
Guest
PostPosted: Mon Dec 18, 2006 4:34 am    Post subject: Re: those *SUPER* tiny J2 SCSI drive jumpers, need more - no Reply with quote
On Sun, 17 Dec 2006 19:21:51 -0500, dave <tool_box@weirdstuffcox.net> wrote:

Quote:
I must have over a hundred misc jumpers removed from old equipment. of
that entire lot, only ONE of 'em was tiny enough to use to jump the
SIPER-small J2 jumpers on the top of my Seagate ST1181677LW.
unfortunately, I need more of these tiny jumpers - I have four of these
drives in one enclosure.

I can't find jumpers this small ANywhere. even tried using a razor knife
and 'whittling some of the normal ones smaller', to no avail. also tried
cutting up a cat food aluminum tin with tinsnips, and 'folding my own'
jumpers, but that didn't work out right either...jeeze

I'm trying to do the DS (delayed start) 'thing' on the four drives,
staggered, 12 seconds per each number in the chain higher. plus I need
to change a few of the SCSI chain position numbers...

best I can measure (dial caliper), the INFINITELY tiny jumpers I need are

height: .078 inch (approx 2mm)
width (thickness): .075 inch (approx 2mm)
length overall: .141 inch (roughly 3.5mm)
pinholes, center to center: .069 inch (this one only an estimate,
impossible to measure with a dial caliper)

anybody got a dozen or 18 of these things laying around? where CAN a guy
get 'em? Radio Slack was a no-go. no other electronics type stores here,
either. I need the ones for the 'top of the board' J2 jumper settings
(DS, delayed start), but I *think* they might be the same size as the
(also "near microscopic") SCSI chain position numbers jumpers, which MY
'existing jumpers collection' had no useables for...

I'm in north central florida...

thanks for ALL help on this guys :-)


Go to Radio Shack and get some solid wire 28 awg or thinner, strip the
insulation off a few inches of it, then take a pair of tweezers and wrap it on
each of the two posts you want to connect, cutting off the wire once you've
got enough wraps. Do a decent job of wrapping on each pin and you should be
good to go...

/daytripper
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PeterD
Guest
PostPosted: Mon Dec 18, 2006 2:22 pm    Post subject: Re: those *SUPER* tiny J2 SCSI drive jumpers, need more - no Reply with quote
On Sun, 17 Dec 2006 19:38:55 -0500, daytripper
<day_trippr@REMOVEyahoo.com> wrote:

Quote:
On Sun, 17 Dec 2006 19:21:51 -0500, dave <tool_box@weirdstuffcox.net> wrote:

I must have over a hundred misc jumpers removed from old equipment. of
that entire lot, only ONE of 'em was tiny enough to use to jump the
SIPER-small J2 jumpers on the top of my Seagate ST1181677LW.
unfortunately, I need more of these tiny jumpers - I have four of these
drives in one enclosure.

I can't find jumpers this small ANywhere. even tried using a razor knife
and 'whittling some of the normal ones smaller', to no avail. also tried
cutting up a cat food aluminum tin with tinsnips, and 'folding my own'
jumpers, but that didn't work out right either...jeeze

I'm trying to do the DS (delayed start) 'thing' on the four drives,
staggered, 12 seconds per each number in the chain higher. plus I need
to change a few of the SCSI chain position numbers...

best I can measure (dial caliper), the INFINITELY tiny jumpers I need are

height: .078 inch (approx 2mm)
width (thickness): .075 inch (approx 2mm)
length overall: .141 inch (roughly 3.5mm)
pinholes, center to center: .069 inch (this one only an estimate,
impossible to measure with a dial caliper)

anybody got a dozen or 18 of these things laying around? where CAN a guy
get 'em? Radio Slack was a no-go. no other electronics type stores here,
either. I need the ones for the 'top of the board' J2 jumper settings
(DS, delayed start), but I *think* they might be the same size as the
(also "near microscopic") SCSI chain position numbers jumpers, which MY
'existing jumpers collection' had no useables for...

I'm in north central florida...

thanks for ALL help on this guys :-)


Go to Radio Shack and get some solid wire 28 awg or thinner, strip the
insulation off a few inches of it, then take a pair of tweezers and wrap it on
each of the two posts you want to connect, cutting off the wire once you've
got enough wraps. Do a decent job of wrapping on each pin and you should be
good to go...

/daytripper


Or try

http://www.cyberguys.com/

I think they carry them... Their shipping charges are high, IMHO, but
if you gotta, you gotta. <bg>
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Folkert Rienstra
Guest
PostPosted: Tue Dec 19, 2006 1:10 am    Post subject: Re: those *SUPER* tiny J2 SCSI drive jumpers, need more - no Reply with quote
"dave" <tool_box@weirdstuffcox.net> wrote in message news:valhh.7012$a14.2376@newsfe24.lga
Quote:
I must have over a hundred misc jumpers removed from old equipment. of
that entire lot, only ONE of 'em was tiny enough to use to jump the
SIPER-small J2 jumpers on the top of my Seagate ST1181677LW.
unfortunately, I need more of these tiny jumpers - I have four of these
drives in one enclosure.

I can't find jumpers this small ANywhere. even tried using a razor knife

and 'whittling some of the normal ones smaller',

Presumably by normal you mean the standard .1"/2.5 mm types?

Quote:
to no avail. also tried cutting up a cat food aluminum tin with tinsnips,
and 'folding my own' jumpers, but that didn't work out right either
...jeeze

I'm trying to do the DS (delayed start) 'thing' on the four drives,
staggered, 12 seconds per each number in the chain higher.

How about other LP jumpers that are installed, but that don't necessari-
ly need to be, like Force SE and Termpower, possibly even ID jumpers
that can be replaced with standard height 2mm jumpers at the front.

Quote:
plus I need to change a few of the SCSI chain position numbers...

You can use standard height 2 mm jumpers for that on the front of the
drive. With a bit of luck you can use common 2.5mm jumpers there too.

Quote:

best I can measure (dial caliper), the INFINITELY tiny jumpers I need are

height: .078 inch (approx 2mm)
width (thickness): .075 inch (approx 2mm)
length overall: .141 inch (roughly 3.5mm)
pinholes, center to center: .069 inch (this one only an estimate,
impossible to measure with a dial caliper)

anybody got a dozen or 18 of these things laying around?

where CAN a guy get 'em?

Well, here is a completely wild guess: SEAGATE?

Quote:
Radio Slack was a no-go. no other electronics type stores here,
either. I need the ones for the 'top of the board' J2 jumper settings
(DS, delayed start), but I *think* they might be the same size as the
(also "near microscopic") SCSI chain position numbers jumpers, which MY
'existing jumpers collection' had no useables for...

They are all 2mm width jumpers, common for SCSI drives and Laptop drives.
The bottom mounted jumpers are Low Profile so that the drives can be bottom
mounted. You can't use the standard 2 mm jumpers as they will simply fall off.
You could grind them off though to a point where they don't fall off anymore.

Quote:

I'm in north central florida...

thanks for ALL help on this guys :-)

toolie

- -
replies by e-mail, if any, please remove the weirdstuff from my address
before you click 'send' - thanks :-)
- -
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tanstafl
Guest
PostPosted: Sat Dec 23, 2006 3:26 pm    Post subject: Re: those *SUPER* tiny J2 SCSI drive jumpers, need more - no Reply with quote
On Sun, 17 Dec 2006 19:21:51 -0500, dave <tool_box@weirdstuffcox.net>
wrote:

Quote:
I must have over a hundred misc jumpers removed from old equipment. of
that entire lot, only ONE of 'em was tiny enough to use to jump the
SIPER-small J2 jumpers on the top of my Seagate ST1181677LW.
unfortunately, I need more of these tiny jumpers - I have four of these
drives in one enclosure.
Each Seagate drive should ship with a baggie of these jumpers.

They're like small plastic injection mold model airplane parts - 12 on
a stick - that you twist off as needed. I bought a few drives a
couple years ago off eBay, and the jumpers didn't come with the
shipment :-(

At that time I couldn't find them at Newegg, Hyper Micro, CableGuys or
my local Frie's. Even Seagate doesn't sell them. They do have a
heart though - a little whine and some begging scored a couple
baggies.

If you still need them, send me your snail address - I can spare a
half dozen if it will do you any good.
--
Pete Gebel pfgebel(deletethis)@crisperiodcom
Have the best day possible - all things considered
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murph1012
Guest
PostPosted: Thu Jan 18, 2007 2:45 pm    Post subject: Re: those *SUPER* tiny J2 SCSI drive jumpers, need more - no Reply with quote
"dave" <tool_box@weirdstuffcox.net> wrote in message
news:valhh.7012$a14.2376@newsfe24.lga...
Quote:
I must have over a hundred misc jumpers removed from old equipment. of that
entire lot, only ONE of 'em was tiny enough to use to jump the SIPER-small
J2 jumpers on the top of my Seagate ST1181677LW. unfortunately, I need more
of these tiny jumpers - I have four of these drives in one enclosure.

I can't find jumpers this small ANywhere. even tried using a razor knife
and 'whittling some of the normal ones smaller', to no avail. also tried
cutting up a cat food aluminum tin with tinsnips, and 'folding my own'
jumpers, but that didn't work out right either...jeeze

I'm trying to do the DS (delayed start) 'thing' on the four drives,
staggered, 12 seconds per each number in the chain higher. plus I need to
change a few of the SCSI chain position numbers...

best I can measure (dial caliper), the INFINITELY tiny jumpers I need are

height: .078 inch (approx 2mm)
width (thickness): .075 inch (approx 2mm)
length overall: .141 inch (roughly 3.5mm)
pinholes, center to center: .069 inch (this one only an estimate,
impossible to measure with a dial caliper)

anybody got a dozen or 18 of these things laying around? where CAN a guy
get 'em? Radio Slack was a no-go. no other electronics type stores here,
either. I need the ones for the 'top of the board' J2 jumper settings (DS,
delayed start), but I *think* they might be the same size as the (also
"near microscopic") SCSI chain position numbers jumpers, which MY
'existing jumpers collection' had no useables for...

I'm in north central florida...

thanks for ALL help on this guys :-)

toolie

- -
replies by e-mail, if any, please remove the weirdstuff from my address
before you click 'send' - thanks :-)
- -

Ya mean these mini-mini 1.0mm ones here?
http://www.centrix-intl.com/details.asp?productid=503

Or the mini 2.0mm ones?
http://www.centrix-intl.com/details.asp?productid=504
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