Want To Buy IC 54LS188J

R

Robert Smith

Guest
I need following ICs for a repair/maintenance contract.

1) IC P/N 54LS188J or P/N 54LS188J/883B
&
2) Honeywell P/N 3718682-31

Any one having New/Unused ICs, please E-Mail offer to;

robert@ivaroop.com

Indicate date code.

I am looking to buy up to 50 each.

Thanks,
Robert Smith
 
Cure??


"Robert Smith" <robert@ivaroop.com> wrote in message
news:b3ebb387.0310071829.50ec96b6@posting.google.com...
I need following ICs for a repair/maintenance contract.

1) IC P/N 54LS188J or P/N 54LS188J/883B
&
2) Honeywell P/N 3718682-31

Any one having New/Unused ICs, please E-Mail offer to;

robert@ivaroop.com

Indicate date code.

I am looking to buy up to 50 each.

Thanks,
Robert Smith
Click to expand...
 
"Robert Smith" wrote ...
I need following ICs for a repair/maintenance contract.
1) IC P/N 54LS188J or P/N 54LS188J/883B &
2) Honeywell P/N 3718682-31
Any one having New/Unused ICs, please E-Mail offer to;
robert@ivaroop.com Indicate date code.
I am looking to buy up to 50 each.
Click to expand...
100 ceramic /883B chips are going to be very expensive.
What's wrong with a 74188? And why so many defective
32 x 8 proms anyway?

BTW, are you sure an LS version of the '188 was ever
made? Perhaps you should try seeking out some old
SN74188AJ parts if ceramic is required.

Thanks,
- Win

whill_at_picovolt-dot-com
 
Winfield Hill <Winfield_member@newsguy.com> wrote in message news:<bm0vul01i3a@drn.newsguy.com>...
"Robert Smith" wrote ...
I need following ICs for a repair/maintenance contract.
1) IC P/N 54LS188J or P/N 54LS188J/883B &
2) Honeywell P/N 3718682-31
Any one having New/Unused ICs, please E-Mail offer to;
robert@ivaroop.com Indicate date code.
I am looking to buy up to 50 each.

100 ceramic /883B chips are going to be very expensive.
What's wrong with a 74188? And why so many defective
32 x 8 proms anyway?

BTW, are you sure an LS version of the '188 was ever
made? Perhaps you should try seeking out some old
SN74188AJ parts if ceramic is required.
Click to expand...
I'm guessing from the 54xxx part and the Honeywell P/N that this
is mil-spec stuff. Substituting a 74xxx probably won't get approved

Finding new blank 54LS188J's will prove difficult... But I have
known purchasing departments that bought used bipolar PROM's because
they were so much cheaper than new :)

Tim.
 
Tim Shoppa wrote...
Finding new blank 54LS188J's will prove difficult... But
I have known purchasing departments that bought used bipolar
PROM's because they were so much cheaper than new :)
Click to expand...
Yea, used OTPs should be really cheap!

Thanks,
- Win

whill_at_picovolt-dot-com
 
But I have
known purchasing departments that bought used bipolar PROM's because
they were so much cheaper than new :)
Click to expand...
Yeah, and you sometimes get the data in them free too.
 
"Tim Shoppa" <shoppa@trailing-edge.com> wrote in message
news:bec993c8.0310080947.76b05f94@posting.google.com...
Finding new blank 54LS188J's will prove difficult... But I have
known purchasing departments that bought used bipolar PROM's because
they were so much cheaper than new :)
Click to expand...
The guys at RSA Labs (who make encryption software) have a setup to generate
large random prime numbers for encryption keys. (I don't remember what they
use to generate randomness - maybe a scintillation counter.) They used to
joke that they charged a lot more for used numbers than for new ones :)
 
Try looking for a 54S188 perhaps? Lots more hits than for LS.


"Winfield Hill" <Winfield_member@newsguy.com> wrote in message
news:bm0vul01i3a@drn.newsguy.com...
"Robert Smith" wrote ...
I need following ICs for a repair/maintenance contract.
1) IC P/N 54LS188J or P/N 54LS188J/883B &
2) Honeywell P/N 3718682-31
Any one having New/Unused ICs, please E-Mail offer to;
robert@ivaroop.com Indicate date code.
I am looking to buy up to 50 each.

100 ceramic /883B chips are going to be very expensive.
What's wrong with a 74188? And why so many defective
32 x 8 proms anyway?

BTW, are you sure an LS version of the '188 was ever
made? Perhaps you should try seeking out some old
SN74188AJ parts if ceramic is required.

Thanks,
- Win

whill_at_picovolt-dot-com
Click to expand...
 
I wonder if the fella can use 38510 class parts.


"Winfield Hill" <Winfield_member@newsguy.com> wrote in message
news:bm1k610fp9@drn.newsguy.com...
Tim Shoppa wrote...

Finding new blank 54LS188J's will prove difficult... But
I have known purchasing departments that bought used bipolar
PROM's because they were so much cheaper than new :)

Yea, used OTPs should be really cheap!

Thanks,
- Win

whill_at_picovolt-dot-com
Click to expand...
 
Robert Smith wrote:

I need following ICs for a repair/maintenance contract.

1) IC P/N 54LS188J or P/N 54LS188J/883B
&
2) Honeywell P/N 3718682-31

Any one having New/Unused ICs, please E-Mail offer to;

robert@ivaroop.com

Indicate date code.

I am looking to buy up to 50 each.

Thanks,
Robert Smith
Click to expand...
Have you check out places that deal with obsolete components such as
Rochester electronics? There are several others out there in this field.

HTH

al
 
I've found a company with about 100 off 54S188...

The company is "Circuit Solutions Inc".

Click on their link on this page...

http://www.electronics-list.com/Top_Science_Technology_Electronics_Reference_Obsolete_Component_Sources.html

(Long URL might wrap)

Their web site http://www.cirsolutions.com has some strange protection on it
that makes it hard to cut and paste their address :-( anyway they are at:

1580 Lakeland Ave

Bohemia

New York 11716

Tel (613) 563-1100

Fax (613)563-0926/0945

I have no connection with this company, never even heard of them before.

Colin

"CWatters" <colin.watters@pandora.be> wrote in message
news:IQ9hb.67544$qm5.3424364@phobos.telenet-ops.be...
Try looking for a 54S188 perhaps? Lots more hits than for LS.


"Winfield Hill" <Winfield_member@newsguy.com> wrote in message
news:bm0vul01i3a@drn.newsguy.com...
"Robert Smith" wrote ...
I need following ICs for a repair/maintenance contract.
1) IC P/N 54LS188J or P/N 54LS188J/883B &
2) Honeywell P/N 3718682-31
Any one having New/Unused ICs, please E-Mail offer to;
robert@ivaroop.com Indicate date code.
I am looking to buy up to 50 each.

100 ceramic /883B chips are going to be very expensive.
What's wrong with a 74188? And why so many defective
32 x 8 proms anyway?

BTW, are you sure an LS version of the '188 was ever
made? Perhaps you should try seeking out some old
SN74188AJ parts if ceramic is required.

Thanks,
- Win

whill_at_picovolt-dot-com
Click to expand...
 
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