Murphy's law for electronics?

Bricolo · 3rd June 2007, 09:39 PM

Hi,

I'm looking for an article, an application note from one of the big companies I think (ADI, National...)

They mentioned a Murphy's law for electronics, in about 10 points. One being "transistors blow to protect the fuses" another is something like "prototypes always work in the lab and never during presentations"

does anyone remember what article it was? I'm looking for it

thanks!

SY · 3rd June 2007, 09:56 PM

I originally saw this in QST, probably 20 years before you were born.

It might be worth searching over at the ARRL site if they've archived old issues.

FastEddy · 3rd June 2007, 10:11 PM

Sy: perhaps it is time to update the list.

Conrad Hoffman · 3rd June 2007, 10:18 PM

Though not specific to electronics, this is the definitive list I'm most familiar with:

Murphy's Laws

FastEddy · 3rd June 2007, 10:21 PM

... I especially like: "II.5. Firmness of delivery dates is inversely proportional to the tightness of the schedule."

redrabbit · 4th June 2007, 07:30 AM

Conrad's link is the same text as what's presented here, in what I think is the best app note ever.....

Linear AN47
http://www.linear.com.cn/pc/download...28,P1219,D4138

=RR=

Bricolo · 4th June 2007, 05:35 PM

thanks guys, but unfortunately that's not the file I was looking for

the one I remember is an old application note (maybe something else) and is not in written but "scanned" format. the murphy's law for electronics are given at the beginning of the document and are not longer than half a page.

SY: please don't refer to my age, I just went 25 so I feel like an old fart now

BTW; how's life on the other side of the ocean? drop me a line when you're going to europe

Pjotr · 4th June 2007, 05:56 PM

There is another law that complements Murphy’s law: The law of conservation of trouble. I don’t know who ever did put up this law but it says:

“The amount of trouble within a system is constant”

SY · 4th June 2007, 09:53 PM

Quote:

SY: please don't refer to my age, I just went 25 so I feel like an old fart now

I've got underwear older than that.

"A dropped tool will land so as to cause maximum damage." AKA, "The Law of Selective Gravitation."

FastEddy · 4th June 2007, 11:49 PM

Speaking Murphy's old cloths: " ... I've got underwear older ..." ... and I've got several Y2K / "Byte Me" T-shirts.

An amendment for sailors: " A dropped tool will cause maximum damage or fall in the water ..."

3rd June 2007, 09:39 PM	#1
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	Murphy's law for electronics? Hi, I'm looking for an article, an application note from one of the big companies I think (ADI, National...) They mentioned a Murphy's law for electronics, in about 10 points. One being "transistors blow to protect the fuses" another is something like "prototypes always work in the lab and never during presentations" does anyone remember what article it was? I'm looking for it thanks! __________________ Just remember: in theory there's no difference between theory and practice. But in practice it usually is quite a bit difference... Bob Pease

3rd June 2007, 09:56 PM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	I originally saw this in QST, probably 20 years before you were born. It might be worth searching over at the ARRL site if they've archived old issues. __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

3rd June 2007, 10:11 PM	#3
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	Sy: perhaps it is time to update the list. __________________ Over compression is a problem with modern CD recordings

3rd June 2007, 10:21 PM	#5
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	... I especially like: "II.5. Firmness of delivery dates is inversely proportional to the tightness of the schedule." __________________ Over compression is a problem with modern CD recordings

4th June 2007, 05:35 PM	#7
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	thanks guys, but unfortunately that's not the file I was looking for the one I remember is an old application note (maybe something else) and is not in written but "scanned" format. the murphy's law for electronics are given at the beginning of the document and are not longer than half a page. SY: please don't refer to my age, I just went 25 so I feel like an old fart now BTW; how's life on the other side of the ocean? drop me a line when you're going to europe __________________ Just remember: in theory there's no difference between theory and practice. But in practice it usually is quite a bit difference... Bob Pease


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

3rd June 2007, 10:18 PM	#4
Conrad Hoffman diyAudio Member Join Date: Mar 2007 Location: Canandaigua, NY USA	Though not specific to electronics, this is the definitive list I'm most familiar with: Murphy's Laws

4th June 2007, 07:30 AM	#6
redrabbit diyAudio Member Join Date: Oct 2004	Conrad's link is the same text as what's presented here, in what I think is the best app note ever..... Linear AN47 http://www.linear.com.cn/pc/download...28,P1219,D4138 =RR=

4th June 2007, 05:56 PM	#8
Pjotr diyAudio Member Join Date: Nov 2002 Location: Netherlands	There is another law that complements Murphy’s law: The law of conservation of trouble. I don’t know who ever did put up this law but it says: “The amount of trouble within a system is constant”

4th June 2007, 11:49 PM	#10
FastEddy diyAudio Member Join Date: Jun 2006 Location: North Californie	Speaking Murphy's old cloths: " ... I've got underwear older ..." ... and I've got several Y2K / "Byte Me" T-shirts. An amendment for sailors: " A dropped tool will cause maximum damage or fall in the water ..." __________________ Over compression is a problem with modern CD recordings

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Murphy Usher two way FS Seattle area	vaughn	Swap Meet	2	6th August 2009 05:11 PM
Murphy Usher two way or PE D'Appolito	vaughn	Multi-Way	0	27th March 2009 10:20 PM
Murphy law applied to Electronics	destroyer X	Solid State	21	16th July 2008 09:10 AM
Bestbuy Insignia - moded a la Dennis Murphy	peter_m	Multi-Way	0	23rd January 2008 07:13 PM
Dennis Murphy's Plop-in-the-Box	coolkhoa	Multi-Way	3	21st December 2004 04:50 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read