MsPacMan
in [Design]
|
Prev: Contemporary Auditing Real Issues and Cases by Knapp 8th edition (2011) Solution Manual is available for purchase at affordable prices. Contact me at allsolutionmanuals11[at]gmail.com to buy it today.
Next: statistics folly
From: krw on 17 Jul 2010 12:16 On Sat, 17 Jul 2010 09:11:49 -0700, Joerg <invalid(a)invalid.invalid> wrote: >krw(a)att.bizzzzzzzzzzzz wrote: >> On Sat, 17 Jul 2010 06:33:23 -0700, Joerg <invalid(a)invalid.invalid> wrote: >> >>> Frank Buss wrote: >>>> Joerg wrote: >>>> >>>>> I believe Newark carries them. >>>> Digikey has it, too. Search for "keystone test points" and you'll get a >>>> nice selection for diameter, color etc. Looks like it is popular, because >>>> some types are available in container quantities :-) >>>> >>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=5002K-ND >>>> >>> Thanks, I didn't know they carried these. Unfortunately such test points >>> are comparatively large, for 0.040" holes and similar. >> >> Come on Joerg. They're only three for ten bucks. You can afford them! >> >> <yikes!> BTW, we use something similar for less than $.10 each. ...and those >> are usually deleted when production settles down. > > >I didn't say I can't afford them :-) ;-) >They are just a bit large for modern SMT layouts. Technologically a bit >long in the tooth. We use them on power supplies and a couple of communications lines (RS-422). They're useful for scope grounds. There once were connectors that would accept a scope tip. Has anyone seen those recently? They were *expensive* but for test jigs they would be useful.
From: Joerg on 17 Jul 2010 12:38 krw(a)att.bizzzzzzzzzzzz wrote: > On Sat, 17 Jul 2010 09:11:49 -0700, Joerg <invalid(a)invalid.invalid> wrote: > >> krw(a)att.bizzzzzzzzzzzz wrote: >>> On Sat, 17 Jul 2010 06:33:23 -0700, Joerg <invalid(a)invalid.invalid> wrote: >>> >>>> Frank Buss wrote: >>>>> Joerg wrote: >>>>> >>>>>> I believe Newark carries them. >>>>> Digikey has it, too. Search for "keystone test points" and you'll get a >>>>> nice selection for diameter, color etc. Looks like it is popular, because >>>>> some types are available in container quantities :-) >>>>> >>>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=5002K-ND >>>>> >>>> Thanks, I didn't know they carried these. Unfortunately such test points >>>> are comparatively large, for 0.040" holes and similar. >>> Come on Joerg. They're only three for ten bucks. You can afford them! >>> >>> <yikes!> BTW, we use something similar for less than $.10 each. ...and those >>> are usually deleted when production settles down. >> >> I didn't say I can't afford them :-) > > ;-) > >> They are just a bit large for modern SMT layouts. Technologically a bit >> long in the tooth. > > We use them on power supplies and a couple of communications lines (RS-422). > They're useful for scope grounds. > > There once were connectors that would accept a scope tip. Has anyone seen > those recently? They were *expensive* but for test jigs they would be useful. Not recently. I often use needles, the ones that come with higher end shirts. You know, where Murphy says that you'll always forget one when trying it on and ... OUCH. Many can be soldered to (not all) and then occasionally I use a rubber band to tug a bit on the cable or the needle so it won't fly out. The needles are free, as long as you pay the $49 plus tax for the shirt :-) -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Spehro Pefhany on 17 Jul 2010 13:00 On Sat, 17 Jul 2010 06:02:00 +0200, the renowned Frank Buss <fb(a)frank-buss.de> wrote: >Joerg wrote: > >> I believe Newark carries them. > >Digikey has it, too. Search for "keystone test points" and you'll get a >nice selection for diameter, color etc. Looks like it is popular, because >some types are available in container quantities :-) You mean a Tupperware container? ;-) 128,000 of those, bagged in 1K lots, is probably a bit under 10 lb (4 kg) >http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=5002K-ND Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
From: Frank Buss on 17 Jul 2010 13:04 Joerg wrote: > Not recently. I often use needles, the ones that come with higher end > shirts. You know, where Murphy says that you'll always forget one when > trying it on and ... OUCH. Many can be soldered to (not all) and then > occasionally I use a rubber band to tug a bit on the cable or the needle > so it won't fly out. I have some coils of silver coated copper. 1 mm diameter are nice for soldering stable test points and 0.4 mm is useful, if you don't have much space (or for dead bug style prototyping). Of course, not as easy and good as a ready made test points with a loop and plastic ring for easier mounting. -- Frank Buss, fb(a)frank-buss.de http://www.frank-buss.de, http://www.it4-systems.de
From: Frank Buss on 17 Jul 2010 13:11
Spehro Pefhany wrote: > You mean a Tupperware container? ;-) > > 128,000 of those, bagged in 1K lots, is probably a bit under 10 lb (4 > kg) you are right, it is easy for me to be wrong when estimating volumens without calculating :-) -- Frank Buss, fb(a)frank-buss.de http://www.frank-buss.de, http://www.it4-systems.de |