It's a dual polarity tracking voltage regulator @ up to 100mA.
They are on page 1-41 of the 1976 Linear devices handbook."Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40dee321$0$39214$ed2619ec@ptn-nntp-reader01.plus.net...
"tommiy" <tommiy@remove4spam.ozemail.com.au> wrote in message
news:LvxDc.690$OY.22811@nnrp1.ozemail.com.au...
I've been looking for a week now and it appears there isn't such a
beast on the net. I've tried all the normal suspect places but it
appears that this doesn't exist...yet I have one on a CPU board
manufactured about 20 yrs ago....
It's a dual polarity tracking voltage regulator @ up to 100mA.
It was produced in two forms of 14 pin DIL and a 10 lead round
TO-5H metal can. Of the 14 pin varieties, one is a 'power' package
and has a metal strap running across the package from pin 1/14
end to 7/8 end. The pinouts are different in both cases.
It has some close cousins - LM325 +/- 15 V and LM326 +/- 12V.
National Semis made them in the 225 etc. and 125 etc. ratings.
However, the 327 (227, 127) are +/- 5Vdc regulators with current
limit and line/load regulation of 0.06%.
Thanks Graham,
Don't suppose you know where a data sheet is for the thing do you?
Appears NS doesn't even acknowledge they existed anymore
tommiy wrote:
inverted posting corrected
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40dee321$0$39214$ed2619ec@ptn-nntp-reader01.plus.net...
"tommiy" <tommiy@remove4spam.ozemail.com.au> wrote in message
news:LvxDc.690$OY.22811@nnrp1.ozemail.com.au...
I've been looking for a week now and it appears there isn't such a
beast on the net. I've tried all the normal suspect places but it
appears that this doesn't exist...yet I have one on a CPU board
manufactured about 20 yrs ago....
It's a dual polarity tracking voltage regulator @ up to 100mA.
It was produced in two forms of 14 pin DIL and a 10 lead round
TO-5H metal can. Of the 14 pin varieties, one is a 'power' package
and has a metal strap running across the package from pin 1/14
end to 7/8 end. The pinouts are different in both cases.
It has some close cousins - LM325 +/- 15 V and LM326 +/- 12V.
National Semis made them in the 225 etc. and 125 etc. ratings.
However, the 327 (227, 127) are +/- 5Vdc regulators with current
limit and line/load regulation of 0.06%.
Thanks Graham,
Don't suppose you know where a data sheet is for the thing do you?
Appears NS doesn't even acknowledge they existed anymore
They are on page 1-41 of the 1976 Linear devices handbook.
What did you want to know about them? Be sure to identify which type
of 14 pin package you have.
--
Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
WIMBORNE http://www.wessex-astro-society.freeserve.co.uk/ Wessex
Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
You said that before..."Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40df5122$0$39220$ed2619ec@ptn-nntp-reader01.plus.net...
tommiy wrote:
inverted posting corrected
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40dee321$0$39214$ed2619ec@ptn-nntp-reader01.plus.net...
"tommiy" <tommiy@remove4spam.ozemail.com.au> wrote in message
news:LvxDc.690$OY.22811@nnrp1.ozemail.com.au...
I've been looking for a week now and it appears there isn't such a
beast on the net. I've tried all the normal suspect places but it
appears that this doesn't exist...yet I have one on a CPU board
manufactured about 20 yrs ago....
It's a dual polarity tracking voltage regulator @ up to 100mA.
It was produced in two forms of 14 pin DIL and a 10 lead round
TO-5H metal can. Of the 14 pin varieties, one is a 'power' package
and has a metal strap running across the package from pin 1/14
end to 7/8 end. The pinouts are different in both cases.
It has some close cousins - LM325 +/- 15 V and LM326 +/- 12V.
National Semis made them in the 225 etc. and 125 etc. ratings.
However, the 327 (227, 127) are +/- 5Vdc regulators with current
limit and line/load regulation of 0.06%.
Thanks Graham,
Don't suppose you know where a data sheet is for the thing do
you?
Appears NS doesn't even acknowledge they existed anymore
They are on page 1-41 of the 1976 Linear devices handbook.
What did you want to know about them? Be sure to identify which type
of 14 pin package you have.
Graham,
After the datasheet for it.
You said that before too...
What is that 'Icl' in words?
No, I'm not getting drawn into that again! It took me most of a
Well the following datasheet says it is for future products so the
Hi.
"tommiy" <tommiy@remove4spam.ozemail.com.au> wrote in message
news:47xEc.116$N76.4777@nnrp1.ozemail.com.au...
top posting corrected
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40df5122$0$39220$ed2619ec@ptn-nntp-reader01.plus.net...
tommiy wrote:
inverted posting corrected
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40dee321$0$39214$ed2619ec@ptn-nntp-reader01.plus.net...
"tommiy" <tommiy@remove4spam.ozemail.com.au> wrote in message
news:LvxDc.690$OY.22811@nnrp1.ozemail.com.au...
I've been looking for a week now and it appears there isn't such a
beast on the net. I've tried all the normal suspect places but it
appears that this doesn't exist...yet I have one on a CPU board
manufactured about 20 yrs ago....
It's a dual polarity tracking voltage regulator @ up to 100mA.
It was produced in two forms of 14 pin DIL and a 10 lead round
TO-5H metal can. Of the 14 pin varieties, one is a 'power' package
and has a metal strap running across the package from pin 1/14
end to 7/8 end. The pinouts are different in both cases.
It has some close cousins - LM325 +/- 15 V and LM326 +/- 12V.
National Semis made them in the 225 etc. and 125 etc. ratings.
However, the 327 (227, 127) are +/- 5Vdc regulators with current
limit and line/load regulation of 0.06%.
Thanks Graham,
Don't suppose you know where a data sheet is for the thing do
you?
Appears NS doesn't even acknowledge they existed anymore
They are on page 1-41 of the 1976 Linear devices handbook.
What did you want to know about them? Be sure to identify which type
of 14 pin package you have.
Graham,
After the datasheet for it.
You said that before...
Tried checking almost every online source
for this and it appears its a big hole....if you check nat semi none of
the
family is even listed anymore.
You said that before too...
I found an incomplete set for a lm325 but its
missing the Icl curves etc.
What is that 'Icl' in words?
Are you designing with this thing? I thought it was a repair job.
Why can't you replace it with a 78L05 3 terminal regulator and its
negative counterpart?
If you could scan them or know somewhere online to get it it would be
appreciated.
No, I'm not getting drawn into that again! It took me most of a
morning to scan and process a smaller data sheet for someone
else because of the crappy print in the book (why do they use tiny
print on rubbish paper) and that produced a multimegabyte PDF
file which took half the afternoon to upload!
Interesting I have an 1980 linear book an AN book and its not in either
of
these....must have gone obsolete between 76 and 80 ;(
Well the following datasheet says it is for future products so the
writing was on the wall, be it though that it was wrong wall!
Now, you failed to mention which type package you want the info for.
--
Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
WIMBORNE http://www.wessex-astro-society.freeserve.co.uk/ Wessex
Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
Graham,
I'm not going to even waste my time with you. If you don't want to
assist why add the sarcastic remarks. The request was in the title in
the
first place.
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40e2ed44$0$60487$ed2619ec@ptn-nntp-reader01.plus.net...
"tommiy" <tommiy@remove4spam.ozemail.com.au> wrote in message
news:47xEc.116$N76.4777@nnrp1.ozemail.com.au...
top posting corrected
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40df5122$0$39220$ed2619ec@ptn-nntp-reader01.plus.net...
tommiy wrote:
inverted posting corrected
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:40dee321$0$39214$ed2619ec@ptn-nntp-reader01.plus.net...
"tommiy" <tommiy@remove4spam.ozemail.com.au> wrote in message
news:LvxDc.690$OY.22811@nnrp1.ozemail.com.au...
I've been looking for a week now and it appears there isn't
such a
beast on the net. I've tried all the normal suspect places but
it
appears that this doesn't exist...yet I have one on a CPU
board
manufactured about 20 yrs ago....
It's a dual polarity tracking voltage regulator @ up to 100mA.
It was produced in two forms of 14 pin DIL and a 10 lead round
TO-5H metal can. Of the 14 pin varieties, one is a 'power'
package
and has a metal strap running across the package from pin 1/14
end to 7/8 end. The pinouts are different in both cases.
It has some close cousins - LM325 +/- 15 V and LM326 +/- 12V.
National Semis made them in the 225 etc. and 125 etc. ratings.
However, the 327 (227, 127) are +/- 5Vdc regulators with
current
limit and line/load regulation of 0.06%.
Thanks Graham,
Don't suppose you know where a data sheet is for the thing
do
you?
Appears NS doesn't even acknowledge they existed anymore
They are on page 1-41 of the 1976 Linear devices handbook.
What did you want to know about them? Be sure to identify which
type
of 14 pin package you have.
Graham,
After the datasheet for it.
You said that before...
Tried checking almost every online source
for this and it appears its a big hole....if you check nat semi none
of
the
family is even listed anymore.
You said that before too...
I found an incomplete set for a lm325 but its
missing the Icl curves etc.
What is that 'Icl' in words?
Are you designing with this thing? I thought it was a repair job.
Why can't you replace it with a 78L05 3 terminal regulator and its
negative counterpart?
If you could scan them or know somewhere online to get it it would
be
appreciated.
No, I'm not getting drawn into that again! It took me most of a
morning to scan and process a smaller data sheet for someone
else because of the crappy print in the book (why do they use tiny
print on rubbish paper) and that produced a multimegabyte PDF
file which took half the afternoon to upload!
Interesting I have an 1980 linear book an AN book and its not in
either
of
these....must have gone obsolete between 76 and 80 ;(
Well the following datasheet says it is for future products so the
writing was on the wall, be it though that it was wrong wall!
Now, you failed to mention which type package you want the info for.
--
Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics
Tutorial
WIMBORNE http://www.wessex-astro-society.freeserve.co.uk/ Wessex
Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites &
Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
Is this similar?