Datasheet jokes.  - Page 1
Forum section: electronics / projects

author: David Chamberlain
author_rank: Frequent Contributor
timestamp: April 22, 2018, 03:43:15 am
content: Sometimes datasheets have some weird / funny things in them...No way?!, this should be promoted to page one it seems kind of important.ANY application, ANYTHING at all... But here are some others just in case the first point was not clear.

author: ataradov
author_rank: Super Contributor
timestamp: April 22, 2018, 03:56:05 am
content: I totally understand. From time to time I have to write documentation like this, and for me personally it is incredibly hard to fill out the standard template.That's exactly my attitude - it is an oscillator, you know if you need one, and if you need one, you know what you want it for.

author: Dubbie
author_rank: Unknown
timestamp: April 22, 2018, 04:09:49 am
content: Yeah, those applications sections of data sheets seem kind of a waste of time to me. By the time you get to reading a data sheet you’re not going to say: “Oh, I could make an Ethernet adapter with this!? Let me pivot wildly to do that instead”And if you already ARE making an ethernet adapter, it’s not like you are going to go through hundreds of data sheets till you find one that says that it is a good application.

author: Whales
author_rank: Super Contributor
timestamp: April 22, 2018, 05:46:37 am
content: This one is unintentional.

author: BravoV
author_rank: Super Contributor
timestamp: April 22, 2018, 06:08:13 am
content: Enough said ...real PDF datasheet attached below

author: palpurul
author_rank: Regular Contributor
timestamp: April 22, 2018, 06:28:03 am
content: Quote from: BravoV on April 22, 2018, 06:08:13 amAn actual drain. WOM!!!!!

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 22, 2018, 07:10:49 am
content: Many Linear application notes have little cartoons in them.

author: David Chamberlain
author_rank: Frequent Contributor
timestamp: April 22, 2018, 07:36:06 am
content: Quote from: BravoV on April 22, 2018, 06:08:13 amI had a good laugh at this graph, and then realised it's actually true some times and got sad.

author: David Chamberlain
author_rank: Frequent Contributor
timestamp: April 22, 2018, 07:45:16 am
content: Quote from: Dubbie on April 22, 2018, 04:09:49 amTrue... but more seriously I think they are kind of coded instructions for sales people to call all their customers who fit under any given banners. 'This part is good for Ethernet adapters, I must let so and so know...' also they give an insight as to why a given product exists and to what market segment it is targeting.

author: tpowell1830
author_rank: Frequent Contributor
timestamp: April 22, 2018, 09:05:37 am
content: A bit unrelated, but then there is the Imodium Q36 space modulator...

author: Gyro
author_rank: Super Contributor
timestamp: April 22, 2018, 09:35:32 am
content: NS took the whole thing to a rather OTT level with their LM0901A1411090451C "Macropower, low performance, degraded circuit operational amplifier"http://www.magma.ca/~legg/TVS/LM0901A1411090451C_Nat_Semi_'78.PDFAs far as I'm aware, the whole sorry saga was inspired by the classic "Umac 606 Infernal Anode Phantasatron"http://www.tubecollectors.org/archives/606.pdf[Edit: The cooling requirements and tap of the 25120 WOM are certainly a homage to it]

author: Bassman59
author_rank: Super Contributor
timestamp: April 28, 2018, 11:57:39 pm
content: Quote from: Gyro on April 22, 2018, 09:35:32 amA colleague at a previous job had a data sheet for a National Semiconductor “Odor I/O.” I’ve been looking for that online for years, and nothing comes up.

author: schmitt trigger
author_rank: Super Contributor
timestamp: April 29, 2018, 12:58:34 am
content: There was also a datasheet which showed how to implement allsixfilter configurations:Low pass, high pass, band pass, band rejects, all pass and thenopass.

author: jfitter
author_rank: Contributor
timestamp: April 29, 2018, 01:24:33 am
content: Not exactly a datasheet, but this little gem from the opening page of a 1970's user manual for an instrument made in Oz. "Activate the master initialization switch to the SEQEB interface" - ie. switch it ON. (SEQEB was the South East Queensland Electricity Board - the power company).

author: Bassman59
author_rank: Super Contributor
timestamp: April 29, 2018, 02:41:32 am
content: Quote from: schmitt trigger on April 29, 2018, 12:58:34 amNone shall pass!

author: Mr. Scram
author_rank: Super Contributor
timestamp: April 29, 2018, 03:59:59 am
content: Quote from: Gyro on April 22, 2018, 09:35:32 amPerformance characteristic chart innuendo included.

author: rx8pilot
author_rank: Super Contributor
timestamp: April 29, 2018, 04:16:47 am
content: This one is decades old, but among my favorites from my pro-audio days.....http://www.repeater-builder.com/molotora/gontor/belchfire.pdf

author: Bassman59
author_rank: Super Contributor
timestamp: April 29, 2018, 04:28:31 am
content: Quote from: rx8pilot on April 29, 2018, 04:16:47 amBehringer has a whole series of power amplifiers called theI-NUKE. The only question: what manufacturer’s design did their copy to make it?

author: fejkblad
author_rank: Newbie
timestamp: April 29, 2018, 04:40:49 am
content: From:http://idea2ic.com/FUN_DOCUMENTS/PolishOpAmp.pdf

author: Mr. Scram
author_rank: Super Contributor
timestamp: April 29, 2018, 04:46:34 am
content: Quote from: fejkblad on April 29, 2018, 04:40:49 amThat's literally the graph I commented on four posts ago.

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 29, 2018, 05:59:31 am
content: NOTE: This message has been deleted by the forum moderator Simon for being against the forum rules and/or at the discretion of the moderator as being in the best interests of the forum community and the nature of the thread.If you believe this to be in error, please contact the moderator involved.An optional additional explanation is:

author: Simon
author_rank: Unknown
timestamp: April 29, 2018, 01:10:16 pm
content: I have seen a filter graph from the filters manufacturer stating pressure drop for flow rate when the filter is new and when fully blocked. The clean line was the expected curve, the fully blocked line was.... a line starting at the same point and later intersecting the clean curve and passing through it making the blocked filter flow more easily than a clean one which breaks physics...... oh it's ok the filters are only used in life support systems, obviously we don't use their data very extensively.......

author: mikerj
author_rank: Super Contributor
timestamp: April 29, 2018, 05:09:59 pm
content: Quote from: Simon on April 29, 2018, 01:10:16 pmThat's what happens when the pressure drop gets large enough to punch a hole in the filter media...

author: james_s
author_rank: Super Contributor
timestamp: April 29, 2018, 05:37:06 pm
content: Quote from: Simon on April 29, 2018, 01:10:16 pmI've heard of filters that have a bypass if they get clogged, it's conceivable that a clogged filter could bypass and flow better than a new one, obviously not providing any filtering at that point.

author: GerryBags
author_rank: Frequent Contributor
timestamp: April 29, 2018, 05:48:15 pm
content: Quote from: Gyro on April 22, 2018, 09:35:32 amLove the control grid made from senileium.

author: MisterDiodes
author_rank: Frequent Contributor
timestamp: April 30, 2018, 12:10:37 am
content: A handy op-codes list to keep on hand next time you're doing an assembly language project - when you need the code to run faster than C:https://www.cs.earlham.edu/~skylar/humor/Unix/opcodes.html

author: Bassman59
author_rank: Super Contributor
timestamp: April 30, 2018, 12:23:01 am
content: Quote from: MisterDiodes on April 30, 2018, 12:10:37 amDouble Precision No-Op!

author: Simon
author_rank: Unknown
timestamp: April 30, 2018, 05:22:08 am
content: Quote from: mikerj on April 29, 2018, 05:09:59 pmConceivable but the straight line still does not match this profile

author: Simon
author_rank: Unknown
timestamp: April 30, 2018, 05:25:42 am
content: Quote from: james_s on April 29, 2018, 05:37:06 pmMost certainly not, not for this kind of filter. That would be a catastrophic mode of operation, and even if so the "blocked" line would still need to be an exponential curve and not a straight line. The graph is as concerning as it is laughable considering the purpose of this filter.......

author: cs.dk
author_rank: Unknown
timestamp: April 30, 2018, 06:18:32 am
content: Quote from: james_s on April 29, 2018, 05:37:06 pmThat would be your cars oilfilter. They all have bypass valves.

author: David Hess
author_rank: Super Contributor
timestamp: April 30, 2018, 07:32:24 pm
content: National's LH0033C and LH0063C Fast and Damn Fast buffer amplifiers were real products as far as I know. I have a different version of this datasheet in one of their short databooks.

author: TechieTX
author_rank: Contributor
timestamp: May 04, 2018, 01:43:59 am
content: Here's the full LH0033C datasheet... the app notes for it are also fun!The 'little German in me' approves of this datasheet.That datasheet was in various editions of databooks for over 10 years before they molested it. The excerpt below is from the 1976 Special Functions Databook, as I recall. By the late '80s it was gone.

author: Mr.B
author_rank: Unknown
timestamp: May 04, 2018, 03:06:09 am
content: Message removed. I had duplicated a posting by BravoV.

author: IDEngineer
author_rank: Super Contributor
timestamp: May 04, 2018, 06:44:28 am
content: Quote from: TechieTX on May 04, 2018, 01:43:59 amI still have original NatSemi databooks from that era, and they do indeed contain the "Damn Fast" opamp spec sheet. I was in high school in those days and it was slightly scandalous to have such language in an otherwise serious technical book. {grin} I always wondered why the two leading zeros in the part number.

author: metrologist
author_rank: Super Contributor
timestamp: May 04, 2018, 04:31:40 pm
content: I heard a story about an engineer, I think it was, who got frustrated with the lengthy datasheet and managed to create a single page datasheet with all of the necessary info. He apparently won some kind of prize or recognition. maybe a motorola engineer or similar. Is this familiar to anyone and has this one-page datasheet been seen?

author: schmitt trigger
author_rank: Super Contributor
timestamp: May 04, 2018, 08:58:36 pm
content: Quote from: IDEngineer on May 04, 2018, 06:44:28 amThe language and humor certainly fit Bob Widlar’s style