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Seminário dos Impactos do Gerenciamento dos PCBs. Shelley de Souza Carneiro, gerente executivo de meio ambiente e sustentabilidade da CNI.
Brasília (DF) 28.11.2014 - Foto: Miguel Ângelo
January 22nd: On Senior Night, PCB faced the Cobra's and came away with a dominating win. Photo taken by Angelique Berkowitz.
I soldered the LEDs and both prototypes work like expected. I have not tested the IR PWM yet though...(have to write more firmware for that) Just waiting for the new case...it's printing right now ;)
Unkown PCB found in a box of electronic junk, call it surplus, that I found in my basement.
You can clearly see the LM813N Op Amp. The Diode looking thing is lable DI01, so it probably is one. You can see many caps of 3 different shape and color, and two weird prongs with hallow centers coming out of the top of the PCB (labeled TPI01 TPI02).
I have no idea where it comes from and I'm seriously wondering if it's a sensor or a LED. What kind? It looks a lot like a bigger version of laser leds from cd/dvd-rw.
Any idea what it is?
Doska elektroniky PCB pre pevný disk. Cena za 1ks.
Vhodné na opravy,diagnostoku, záchranu dát z poškodených diskov a pre foreznýchšpecialistov.
* WDC 1995, WDC96 62–602110–062, WD10C38-YU
* WDC 1996,621011A 3080T12CXP6 7442, WD61C30A-YK
* MAXTOR 301193100 VEGA III, A6DAA0605913CTH ER
* SG22580–101 REV.A, SAB-M3005–8D, 23400278–002
* WDC1995, WDC95 62–602200–002, WD10C38-YV
* WDC 1996, WDC97 62–602208–064,WD61C30A-YK
* ATHENA II/POKER, D1FBB, 2006205 CMY, Poker C6 040108200
*SG20109–100 REV.A, SAB-M3005–8D, 23400278–002
* 66G9718 D43406-A,442898C, 84G6094
* WDC 1995, WDC95 62–602110–002, WDC10C38-YV
* WDC 1996,WDC97 62–602210–076, 2.1GB
* QUANTUM 540S TB54S341 REV 04-B S590K, Quantum14–102092–05
* QUANTUM 800–08–97, EMMM1 94V-0, GMSC 6.406 01992
*MAXTOR 301306100 MIL.TNT V-3, B7DEA, 30017739
* WDC 1996, WDC9662–602220–072, V7142, 2.1GB
* MT1199E 0223-BRS, B041–00139A REV.00
Hitachi PCB 0A30213 (PCB Swap, PCB Replacement, PCB Logic Board Sale, Buy PCB Circuit Board - HDDZone.com)
As the electronics hobbyist one of knowledge that we have to be familiar with is how to make our own printed circuit board (PCB). Making our own simple single side PCB actually is not require a sophisticated technique and technology as you might think, instead most of the required materials is already available at your home. For more information please visit www.ermicro.com/blog/?p=1526
Naked Slug NSLU2 bare bottom side of board. From www.nslu2-linux.org/gallery/nslu2_pcbs/NSLU2_board_rear_bare
BY-CC-SA
Hitachi PCB 0A29180 (PCB Swap, PCB Replacement, PCB Logic Board Sale, Buy PCB Circuit Board - HDDZone.com)
Senior Justin Satchel helped PCB bring the Jags to victory against Archbishop McCarthy. Photo taken by Johmi Vargas.
Design of the PCB for an AutoLab processor.
This will be an arduino Mega Shield.
it will control :
2 Stepper motors
7 water pumps
2 Temperature probes
1 Heater System.
1 LCD (16x2)
4 push buttons
For more on the machine see : diyautolab.blogspot.com/
(in french for now)
More on my blog (in french) : diyautolab.blogspot.com/
...with a grill!
I needed to try out my solder paste and wanted to reflow solder these parts, especially the tricky switch and SD card which would be a pain to solder by hand. I don't have an IR oven or a hot plate (or a reflow machine!) but I do have a standard home grill and figured it would be perfect: the fan moves the air, keeping everything the same temperature while the heating elements are overhead and far away enough to heat uniformly over the surface.
It took 5 minutes from turning on until every joint had reflowed (they started reflowing at 4min) and then I left them for a minute out of the grill to cool down. They seem to have soldered perfectly!
I'm still waiting for the parts for the other two PCBs, but the method seems to be great - and loads quicker than doing it by hand!
P.S. yea, it's not a very well regulated temperature, but I don't have a thermometer that could cope so it's pretty difficult to measure