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  1. Delta Prime

    Best Practices for Component Sourcing in DIY Electronics Projects

    I use a Through Hole Press that is hand-operated & uses through hole copper plated rivets. Good for double sided boards only, with “0.1” hole spacing to connect traces that are transitioning between the top & bottom layers of a PCB. Copper through tubes,I know them as via’s, I use the press for...
  2. Delta Prime

    Electronics Knowledge and Skill Level of This Forum

    It is not just a forum it is a community. Why don’t you introduce yourself ?
  3. Delta Prime

    Hyundai seatbelt alarm bell.

    With what? You made a statement. You did not ask a question. I Don’t watch videos. How momentary? Micro-seconds , nano-seconds, milli-seconds? Reverse current? Why don’t you just strike the low tone bell with the stick? Adjustable over what range of temperatures? What is the normal operating...
  4. Delta Prime

    Best Practices for Component Sourcing in DIY Electronics Projects

    No. I just grabbed a handful of components that I never seen and threw them in a DIY project box shake it around a bit and everything falls into place it designed itself, but then I have to figure out what it’s for.
  5. Delta Prime

    Long differential pair to balanced antenna

    Concerning your helical dipole antenna,, what are your size constraints? 4Nec2 is a free downloadable tool that I use. https://optenni.com/?gad_source=1&gclid=CjwKCAiAwaG9BhAREiwAdhv6Y9HFVvcl2oq24MoRZiP17Ie3alMz1ViM-gUS8ej8V-ZQez_ME2SDkRoCr6UQAvD_BwE In the absence of information! I can only...
  6. Delta Prime

    Long differential pair to balanced antenna

    Next time start off with that! Now you just keep on going more information is needed.
  7. Delta Prime

    Long differential pair to balanced antenna

    I wish I said that. @bertus ,the coolest cat ever! Said that. :)
  8. Delta Prime

    Long differential pair to balanced antenna

    You’re talking about a microstrip antenna, which are printed and or etched they use fractions of wavelength not the entire wavelength. I believe more reading is necessary. https://www.pcbtok.com/pcb-antenna/
  9. Delta Prime

    Miserable failure to solder XLR connector to mic cable!

    Somehow, I get the feeling you will be back, & we will welcome you back, once again!;)
  10. Delta Prime

    Car 12v Battery Charger - Should I try and fix?

    just take one photo once you open the case do not take photos of the underside of the board you may come in contact with electrical components that are holding lethal charges. It’s dangerous! first things first we are concentrating on the fuses. Follow my directions and make sure an adult is...
  11. Delta Prime

    Car 12v Battery Charger - Should I try and fix?

    The (T) stands for time delay, commonly known as “slow blow fuse” 250Volts , 6.3 Amperes. With your battery charger unplugged or disconnected from your household electrical utility mains.Get a digital multimeter put it on beeper or continuity and put the probes across the fuse. No beep = open...
  12. Delta Prime

    RTC slows down after a few minutes and doesn't keep the correct time pace

    The 32 kHz TCXO is embedded in the module. Nobody suggested anything, that is what the thread starter: ( is not using )so…you got a point there!(AI) :mad: It would probably work better if you connected the DS3231. Pin(1) Is your 32kHz output . Schematic is incomplete. Please provide a link to...
  13. Delta Prime

    Long differential pair to balanced antenna

    Can you provide a link or documented reference of your research; understanding a differential PCB trace pair feeding a balanced antenna?
  14. Delta Prime

    Technics SU-X102 amp repair, asking for guidance

    No need to for profanity.Q1 max smoke as well. All the discreet components are way past their operational lifespan. It’s a cascade effect you are encountering even the traces & solder pads themselves are degraded. you have made a valiant effort, but fear you will still continue. You are...
  15. Delta Prime

    A Phony Question

    I asked my great grandpa who has a whimsical perspective and worked for a company he calls Ma-bell, he said unofficially he called it “Mary Christmas Cable”. Red & Green looked like the letter ”J” & Yellow along with Black looked like the letter “K” Because when he was looking at the wire...
  16. Delta Prime

    Draper led torch charging light remains on

    Do as you wish, you are being careful in my opinion 1 W divided by 5 V equals 200 mA of current. There is a process in charging lithium ion batteries first it is a constant current. There is your 200 mA then it changes to constant voltage charging to achieve 4.2 V full charge. The seven hours...
  17. Delta Prime

    Help with PCB Layout ,Drilling plan and BOM (KICAD)

    Apologizes I do not open zip files. For hardware drill, hole diameter, etc., you’re looking at generating a Gerber file that goes along with your schematic layout and Bill Of Material (BOM). The following link wants to sell you something, but the information is pertinent to Gerber files using...
  18. Delta Prime

    Arduino

    Empirical observations are not good enough “it works”? Are you using,Xilinx CPLD. With J Tag hook up? Volunteer all information, please. Part of the design process of (TDCs) or direct conversion of time-intervals into digital code. Is to obtain a resolution with a very low Differential...
  19. Delta Prime

    General electronic questions

    Well, it’s kind of a double edge sword, the questions you ask can be beneficial to others as well when they research that particular topic. That is how these sites work in spirit; for everyone. Personally, I just like to hit threads,not marry them.:cool:Besides there are others with far more...
  20. Delta Prime

    Analog Devices releases Arduino offerings

    Yeah, me too…Arduino board for industrial applications ? RFID accelerometers Internet of things, IOT, OPC to SCADA Protocols DNP3, remote, opening, closing of valves, gas,water, IEC 60870-6 (TASE.2/ICCP), 61850, 60870-5, Modbus. Siemens PLC’s. Disgruntled employee can throw a serious wrench, in...
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