HP cross refernce wanted for 1820-0379

"gcd" wrote

Hi, lookI'm ing for the generic 74 series IC number for an HP 1820-0379. I Don't have any cross refernces or hp bench briefs to refer to.

Any help appreciated.

Thanks Greg

****Greg,try this :-

Brian Goldsmith.

Hi!

Now that's jucy-useful info!!

Save that one for future reference!

Yours, Mark.

Brian Goldsmith wrote:

Another list, compiled by me, which also doesn't have 1820-0379, is attached in case it's useful to someone.

Clifford.

I have a more complete list in a Spreadsheet I can email anyone who wants, and another list in PDF form that is a scan of an old document (ie it is in image form not text) that I am slowly adding to this spreadsheet - If anyone feels keen I could divvy this project up between several people - say do a page or so each....

according to the PDF cross reference the 1820-0379 is an 74H52N.

Any volunteers to help add the data from the PDF to the spreadsheet reply to this message .....

Regards Richard Freeman

Hi All, thanks very much - most useful indeed. I have confirmed that the 0379 is a

74H52N from another email.

The only local source I could find was an NTE74H52N from Rockby here in Melb. However I'm not sure now it's a compatible. The NTE data sheet I obtained from freetradezone.com differs from the 54/74H52 datsheet I have. :( I'll work it out

Richard, I'd be interested in the challenge. email me the spreadsheet and pdf and I'll give it a go.

--- Cheers

Greg

--------- g c d [delete everything else] A.T. austarmetro.com.au

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Thanks Dan,

Greg

Don't

Thanks Dan,

Don't

On Thu, 12 Aug 2004 22:38:47 +1000, "gcd" put finger to keyboard and composed:

I can't help you with that particular number, but here are my data for Google's archives (from a HP1000 mainboard).

1820-0371 74H10N 1820-0384 74H61N 1820-0424 7404N 74H04N 1820-0469 74H102N 1820-0495 74154N 1820-0511 7408N 1820-0538 7423N 1820-0545 SN74191N 1820-0610 9309PC 1820-0611 74182N 1820-0613 74H05N 1820-0616 93221C 1820-0621 7438PC 1820-0622 74151AN 1820-0626 9314PC 1820-0640 74150N 1820-0683 74S04PC 1820-0685 74S10N 1820-0688 74S20N 1820-0694 74S86N 1820-0715 74H106N 1820-0755 6151-1 SRAM? or Z6076-1 (both by HP) 1820-0756 6088-4 SRAM? or 5624-2 (both by HP) 1820-0782 7427N 1820-0788 74174N 1820-1032 SN74198N 1820-1076 74S174N 1820-1080 SN75121N 1820-1130 74LS133 1820-1206 74LS27N 1820-1367 74S08N 1820-1707 74S157N

I have a 1990/91 NTE catalogue which I could also scan if someone were interested.

- Franc Zabkar

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Please remove one 's' from my address when replying by email.

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While we're on the subject of HP equivalents, I'm still on the lookout for a HP1820-0150 RF amp i/c for my HP8601A sweep generator.. Don m5aky Bristol UK

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Thanks Greg - the PDF is 3Meg so I will send it seperately to the spreadsheet - 363K So far I am up to 1818-0757 .... less than 1/6th of the way through ;-) how about I am to get up to page 5 and you aim for Pages 6 to say 9 that way we have 9 other pages for any other volunteers .... BTW for any possible Volunteers if you dont have excel I can tell you how to translate the data into text ....

Regards Richard Freeman

On Sat, 14 Aug 2004 20:46:06 +1000, "Richard Freeman" put finger to keyboard and composed:

Upload the file to your webspace and post the URL. Then all of us can have a go.

There must be an easier way. Can you print the data, rescan it, and then use OCR to convert it to text format? Or are there utilities that can convert .pdfs to image files, and then OCR these images?

- Franc Zabkar

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Please remove one 's' from my address when replying by email.

HI all, thats what I'm doing at the moment , up to page 8 of 18. A little tedious but quicker than manual copy.

When I'm done I'll post a URL and post back to Richard. It will need a proof read, as I know I missed one or two already, looking at the same thing over and over makes my brain go numb and i clicked ignore instead of change several times.

As work gets in the way, i'll do a little at a time - should be done by next weekend

Cheers Greg

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Well not having any OCR software I was not sure whether that was a viable way of decoding those rather dubious images with any certainty as even I was having trouble reading some of those part Numbers but if you have any hope of getting it done by next weekend it is a heck of a lot faster than I was doing - I thought I might have it done by this time next year ;-)

Ah well if you are doing that well I might wait and see how you go - then save my efforts for Proof reading but it certainly is brain numbing transcribing numbers. Either way I figured the spreadsheet would make it easier to find part numbers then you could use the PDF to double check etc ....

Good luck finding a 74HC52 I believe it is a 4 input analogue Mux which has been superseeded by the 74HC4052 - check out the data on this and confirm that it is the same device ....

Thanks Greg

Regards Richard Freeman

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Hi Richard et al, The results will be an excel file. The software I'm using allows export to many formats.It recognises words though, so these number / letter combos it thinks are incorrect, so have to go over just about all entries. It's learns as it goes so it starts to guess the corrections. But the poor quality of the original means it's difficult at times to determine what the part number really is, if I don't receognise it myself.

keep you posted

Cheers Greg

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;-)