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bipolar semiconductor database

J

Jon Kirwan

Jan 1, 1970
0
Trying to drum up some interest in bipolar transistor database.

Have been proof-reading the contents for some time now.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300750687460

Not completely finished, but trying to drum up some interest.

For those interested, there's an un-proofed list of SMD designators
(well, the bipolar transistor lines are 85% checked) there too.

RL

I'd simply support the work even if I never used it. But I
may, too. Order is completed. Looking forward to seeing it.

Jon
 
L

legg

Jan 1, 1970
0
Trying to drum up some interest in bipolar transistor database.

Have been proof-reading the contents for some time now.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300750687460

Not completely finished, but trying to drum up some interest.

For those interested, there's an un-proofed list of SMD designators
(well, the bipolar transistor lines are 85% checked) there too.

RL
 
L

legg

Jan 1, 1970
0
I'd simply support the work even if I never used it. But I
may, too. Order is completed. Looking forward to seeing it.

Jon

Thanks for the support. It's not a total waste - The old Towers
publication, for example, was roughly 20,000 lines. The tehnomagazin
website provides roughly 35,000 lines (seems to be propagated in
spreadsheet format, as well). Most others require some kind of
subscription and as near as I can make out; all could do with a sober
second look at the actual data provided.

RL
 
L

legg

Jan 1, 1970
0
I've bought in too. Looks promising and if one can sort the columns then
you can find your own substitutes more easily.

John :-#)#

It's beyond my savvy, at the moment, to get the PDF printer to accept
the header row of the spreadsheet as a start on each new page. I'm
sure it must be possible, somehow (but I'm prepared to be
disappointed).

I've also seen an interesting trick where the header row hovers on the
spreadsheet display.

As is, it's impossible for me to forget the column row function. It's
the sort of thing that you end up dreaming that you're doing in your
sleep, pixelation and all. Do (did....) real books do that?

Frigging compeeyudahs.

RL
 
J

Jon Kirwan

Jan 1, 1970
0
Actually there was a real book that did (somewhat) sort by various
parameters - called the TRANSISTOR D.A.T.A. Book and put out by D.A.T.A.
Inc. I have edition 46 (Obsolete after August 1979) which is a big help
in finding subs for old transistors...23,899 types in that edition.

I guess you aren't too interested in sharing the spreadsheet...(ducking).

John :-#)#

If he does, I can send it out to a PDF with headings, I
think. Pretty sure, anyway.

Jon
 
L

legg

Jan 1, 1970
0
Bipolar? With or without medication?

Actually, it also includes MULTIPLE bipolar types, and integration of
the simplest kind, like 'digital' transistors, cascode and
differential pairs, mirrors, multiple base or emitter,
diode-transistor pairs and elementary power modules. Descriptors can
get kind of unruly.

Sometimes it gets really loud in the room, when they're all talking at
once.

RL
 
L

legg

Jan 1, 1970
0
Actually there was a real book that did (somewhat) sort by various
parameters - called the TRANSISTOR D.A.T.A. Book and put out by D.A.T.A.
Inc. I have edition 46 (Obsolete after August 1979) which is a big help
in finding subs for old transistors...23,899 types in that edition.

I guess you aren't too interested in sharing the spreadsheet...(ducking).

John :-#)#

Depends on what kind of assistance you're able to offer, with headings
and other features.

RL
 
L

legg

Jan 1, 1970
0
Actually there was a real book that did (somewhat) sort by various
parameters - called the TRANSISTOR D.A.T.A. Book and put out by D.A.T.A.
Inc. I have edition 46 (Obsolete after August 1979) which is a big help
in finding subs for old transistors...23,899 types in that edition.

Most of the typographical errors I have noted seem to originate from a
bad OCR of T.D.Towers 1980 edition (update#2).

The 37th edition of D.A.T.A. (35Meg - use 'save as') is available at:

http://www.adret-electronique.fr/documentations/transistors/

RL
 
L

legg

Jan 1, 1970
0
B

Bill Sloman

Jan 1, 1970
0
And again:

http://tinyurl.com/ad2qw3n

Sales so far = 0

Prompted by another thread - how about some bootleg VBIC models? The
manufacturers won't publish VBIC parameters, but those that can't be
gleaned from Gummel-Poon could be measured on real devices ...

This could be your unique selling point.
 
L

legg

Jan 1, 1970
0
Prompted by another thread - how about some bootleg VBIC models? The
manufacturers won't publish VBIC parameters, but those that can't be
gleaned from Gummel-Poon could be measured on real devices ...

This could be your unique selling point.

The unique selling points, at this time, are that the data is
proof-read and in user-configurable spreadsheet format.

Adding one single column of new data presents an enormous commitment
of user input and research time, for the current 65000 line entries.

Would be better to start from scratch, using a database derived from
spice models or similar - something I've already got on the go and
easy for anyone to whip up. Very low line count.........

RL
 
P

P E Schoen

Jan 1, 1970
0
"legg" wrote in message
And again:

Sales so far = 0

How about having a 7 day Black Friday sale, say $10. I'll buy one, and FWIW
I can put a link on my website. I have print copies of two of the Motorola
semiconductor listings from about 1975-1980 that go back to the 1N34 and
2N107 but a spreadsheet version would be nice. I have a folder with PDF spec
sheets of various popular components that is very useful but I don't think I
could legally sell it or even offer it as an on-line resource because of
copyright issues.

As a sample, here is how I have these PDFs organized:
http://enginuitysystems.com/components/

My components folder is 566 MB with over 1100 files.

I appreciate how much work you have put into your database. Good luck.

Paul
 
L

legg

Jan 1, 1970
0
"legg" wrote in message

How about having a 7 day Black Friday sale, say $10. I'll buy one, and FWIW
I can put a link on my website. I have print copies of two of the Motorola
semiconductor listings from about 1975-1980 that go back to the 1N34 and
2N107 but a spreadsheet version would be nice. I have a folder with PDF spec
sheets of various popular components that is very useful but I don't think I
could legally sell it or even offer it as an on-line resource because of
copyright issues.

As a sample, here is how I have these PDFs organized:
http://enginuitysystems.com/components/

My components folder is 566 MB with over 1100 files.

I appreciate how much work you have put into your database. Good luck.

Paul

Like any tool, it's value is determined by application, not by it's
shape, weight or material cost. In the bush, it has little value.
The fact thyat there's no current widespread application is no
surprise. Reducing the cost to end users isn't going to change this.
Current vendors of similar info have their own strategy that thrives
on disorganization. So be it.

I expect that the proofread data will percolate eventually into the
ethernet. It won't be alone, though, or even identifiable. A 35M
spreadsheet doesn't lend itself to simple web viewing. Lots of
keystrokes required there.

You don't want to get into a 'mine is bigger than yours' discussion.
There are some nuts out there who store everything and anything. They
still end up web searching for new projects.....

For example ( and I'm not volunteering as an example of the nutjob
variety ) the semiconductor folder on this machine's HD alone has over
2,000 folders in it, never mind the file count. Components?
fugedabadit - that's on it's own hard drive.

Organization of this stuff is usually as bad as any catalog. I try to
fit as much formalized info into the file name as possible, to ease
search, retrieval and comparison.

The most useful place for any datasheet is in the project folder where
it has been considered for actual use, next to the spreadsheet where
features were noted for specific evaluation and multi-source
development.

RL
 
L

legg

Jan 1, 1970
0
As a sample, here is how I have these PDFs organized:
http://enginuitysystems.com/components/

My components folder is 566 MB with over 1100 files.
The database CD's 'case drawing' folder has over 2000 images, used to
help categorize and name part body shapes listed in the 1200 line
spreadsheet, that is dedicated only to case/body identification.....

RL
 
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