¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Re: SMD Led
Hello Kevin, Friday, May 24, 2019 You should have done the holes and cut outs BEFORE soldering, then you can clamp pieces of square or rectangular section steel along the edge you will file and
By Chris Wilson · #36285 ·
Re: How do you make nice clean cutouts in pc board material?
Here is a photo that I use. [email protected]> wrote:
By MVS Sarma · #36284 ·
Re: How do you make nice clean cutouts in pc board material?
Jim: ? I just got some front panels made of PCB from JLCPCB.? They had a cutout for a 16 X 2 LCD, several holes for push buttons and a coupe of larger holes for a tuning control and a rotary
By Dave WB6DHW · #36283 ·
Re: How do you make nice clean cutouts in pc board material?
Yes. We get a scapping tool called laminate cutter . Very cheap as in India we pay less than 1$ Toppcb of enclosure is to be separated . Measure and mark with marker pen on either side. Start using
By MVS Sarma · #36282 ·
Re: How do you make nice clean cutouts in pc board material?
On 6/21/2019 10:00 PM, Jim Pruitt wrote: > I need to cut out an area of the top of a pc board enclosure (enclosure made using double sided pc board material).? The cutout is for a 16x2 LCD display.?
By Dave WB6DHW · #36281 ·
How do you make nice clean cutouts in pc board material?
I need to cut out an area of the top of a pc board enclosure (enclosure made using double sided pc board material).? The cutout is for a 16x2 LCD display.? Can someone tell me how to do that and
By Jim Pruitt WA7DUY · #36280 ·
Re: SMD Led
Thank you Harvey that sends me off in right direction for future boards ect.
By Kevin Byrne · #36279 ·
Re: SMD Led
Thank you for your ideas. I have a surface mount tester and special probes coming from Bangood.com but 9 volt and usual5 mm resistor told me two different ends of super small Led. How to get specs on
By Kevin Byrne · #36278 ·
Re: SMD Led
On the bottom of the led look for a bar and a square.? The square is pointing to the cathode.? On the top of the LED, there may or may not be a green marking under the transparent plastic covering
By Harvey White · #36277 ·
Re: SMD Led
"Kevin Byrne via Groups.Io" <kbyrne10@...> writes: I've found that the leads on my multimeter happen to have the correct polarity when in "diode test" mode. So I put it in that mode,
By DJ Delorie · #36276 ·
Re: SMD Led
9 volt battery with resistor on positive red wire led lights up LED with black wire to green squares side. Triangle is bottom side down to board. Pictures are wrong. Thanks to your green squares
By Kevin Byrne · #36275 ·
Re: SMD Led
K is usually cathode( Greek kathodos( "descent" ) ) I think the dot in the "led_sch_top.jpg"" and the green squares "LED Bottom View.jpg" pictures are on the cathode side. But the picture Led Top
By Lee Studley · #36274 ·
SMD Led
In the clipboard file are three pics of a SMD led project. Question is the green triangle pointing at K=Anode so as to buy this led in future from orient? I am new to surface mount and need this
By Kevin Byrne · #36273 ·
Re: New PCB board/Yellow Wire
Thank you for all your replies. Best Kevin
By Kevin Byrne · #36272 ·
Re: New PCB board/Yellow Wire
Yellow Wire modification to boards, especially very complex multi-layer boards is not uncommon in the military and space fabrication. If there was a design error in the brass board, subtle change
By Mike · #36271 ·
Re: New PCB board
I use them to fix mistakes when I don't want to wait for a new board.? If it's the first revision, there's likely to be a design error in there in addition to the need for the jumper, or maybe I just
By Harvey White · #36270 ·
Re: New PCB board
These wires are very often used to implement ECOs/FCOs (Engineering/Field Change Orders). I don't think it is as common now, but it used to be the case where it was fairly costly to spin a new board,
By Mark Pilant · #36269 ·
Re: New PCB board
I stole from a websearch. was surprised there weren't more good examples. It's really an art-form in is own right.
By Lee Studley · #36268 ·
Re: New PCB board
Nice photo by the way. As long as it is connected good and transistor is heat sink protected while soldering all should be well I gather as a newbi home hobbiest only. No formal training.
By Kevin Byrne · #36267 ·
Re: New PCB board
Yup, I have seen some ¡°big brand¡± names with ¡°green wire¡±
By Cornelis van Rensburg · #36266 ·