Design

Cleaning leaked electrolytic & corrosion on PCB
What is the best method for cleaning up leaked electrolyte? This PCB has some corrosion on IC leads and vias. Is there a corrosion neutralizer that would be effective? Since the potential for corrosion in places that aren't accessible (deep in the vias), a liquid that can neutralize corrosion is called for. ... 21 Apr 2010 01:11

UART Multiplexing
I need an IC to share a UART between two devices. The TX/RX voltage will range between 3.3V and 5V. The data rate is 115,200 bps. I've found a few IC's capable of handling this but they are all so expensive (ex: MAX399 @ $2.70 in qty 2500). Any other suggestions? --------------------------------------- ... 10 Apr 2010 20:07

Multimeter Display Fade
I'm browsing ebay for bench meters and I can't tell if it's bad photography or that most of the fluke bench meters sold on Ebay look dim. ... 11 Apr 2010 00:28

BC337 hfe distribution
Just measured hfe from some BC337-40 at about 5 mA collector current. Unfortunately nothing very interesting there Results: Sample size: 960 pcs minimum hfe: 388 maximum hfe 513 (datasheet limits are 250 and 630) avarage: 452 avarage deviation: 27 median: 463 mode: 477 Distribution is a bit strange looking... 15 Apr 2010 12:31

Released scope_pic, a digital storage oscillosope in a PIC 18F14K22, as GPL
Released scope_pic, a digital storage oscilloscope in a PIC 18F14K22, as GPL. http://panteltje.com/panteltje/pic/scope_pic/ Have to move on. I ain't winfield. ;-) Next novel. Please note the GPL warning on this page, I am not joking. If you think you can get away with it, be warned. All the negativ... 9 Apr 2010 11:09

Transistor torture...(or gruesome murder anyway)
On Fri, 9 Apr 2010 08:02:16 -0500, "Tim Williams" <tmoranwms(a)charter.net> wrote: Neat how the emitter bondwire seems to have turn into a fulgerite. Tim Glue them back together and sell them on E-BAY for half price. Under not tested and as is.;-) ... 10 Apr 2010 20:07

some breadboards
ftp://jjlarkin.lmi.net/BreadBoards.jpg ftp://jjlarkin.lmi.net/BreadBoards2.JPG John ... 16 Apr 2010 02:56

Finally!
http://www.linear.com/pc/productDetail.jsp?navId=H0,C1,C1778,C1764,P88400 I told these guys to do this, like, two years ago. But they used two resistors, and I told them to use one. John ... 11 Apr 2010 14:33

Cold spray, where do you buy?
Gents, Running low on cold spray. Digikey doesn't sell it anymore, maybe because of shipment safety rules and regs. RadioShack is also dry. Where can one get that stuff locally? -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain o... 12 Apr 2010 15:54

Mosquito killer
Is there a chemical deadly to mosquitos that is lighter than air? I was thinking about making an device that could kill them. I guess it's probably no better than a bug zapper. The idea is that since they, supposedly, are attracted to CO2, to make a bucket with an inverted code with a hole at the bottom. The ... 9 Apr 2010 06:42