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  1. Delta Prime

    How does it influence reprogrammability?

    EPM7064AETC100-10N is Obsolete and no longer manufactured. You can obtain the datasheet here PDF free download. It’s a good read…
  2. Delta Prime

    Help Modifying Constant Current LED Driver from 700mA to 400mA

    Welcome to Maker Pro. :)Make?model? link.? To your switch mode, power supply. Thank you. P.S. A schematic would be wonderful.
  3. Delta Prime

    First resonate a short antenna, then impedance match it ?

    My gratitude for the invitation it’s always good to know someone on the inside ;) I highly recommend! You’ll find me there… https://www.physicsforums.com/
  4. Delta Prime

    First resonate a short antenna, then impedance match it ?

    I enjoy reading your post; It pleases me that you have responded :):):):)
  5. Delta Prime

    Identifying and replacing a small DC motor

    Then it is, I who should see the ophthalmologist. This is what I see by clicking the image.
  6. Delta Prime

    Identifying and replacing a small DC motor

    That poor thing has age-related macular degeneration! ;) The Amsler grid is a simple square containing a grid pattern and a dot in the middle. When used correctly—once a day, every day—the Amsler grid can show problem spots in your field of vision. If you notice any areas of the grid that appear...
  7. Delta Prime

    Can you help designing buffer?

    I employ that technique myself, depending on the potting material they can be heated and melted releasing the electronic components ,in my case curiosity on very clever designs with no documentation and encapsulated. I have been quite successful & have learned a great deal from my exploits! I...
  8. Delta Prime

    Question about 18650 cells

    Your BMS has a pre-set low voltage battery protection threshold; as you have just discovered it will not charge the battery. It is too dangerous. As well as over voltage & overcurrent protection thresholds. The positive terminal of your battery has a safety vent that will release highly...
  9. Delta Prime

    Can you help designing buffer?

    True but things evolve, especially conversations of the OP query see here. :) My comment stands “no school like the old school!” https://forum.allaboutcircuits.com/threads/can-you-help-designing-this-buffer.204874/
  10. Delta Prime

    First resonate a short antenna, then impedance match it ?

    What we have here is a failure to communicate. Some people you just cannot reach! A quote,from the movie:Cool Hand Luke. And coined in the lyrics from the song “nothing else matters” by Metallica! “Booyah” you have just been DP’ed. -Delta Prime
  11. Delta Prime

    Identifying and replacing a small DC motor

    Power in watts equals Voltage multiplied by Current. P = V X I P = 24 X 0.46 P = 11.04 Watts The power of your motor is 11 watts, The angular velocity of your motor shaft is measured in revolutions, per minute or RPM. You can use tachometer sensor on the motor shaft directly to measure the...
  12. Delta Prime

    Roxel dab radio problems

    Thank you for the photo you have a bulged capacitor. You should be charged at 4.2 you’re at 4.08V replace capacitor!
  13. Delta Prime

    Roxel dab radio problems

    Welcome to Maker Pro. :) From your description, we will concentrate on the charging port and associated circuitry take a photo of that if you could please. Is it a Roxel dab radio retro D1 if not, I need specifics. Is there an indicator LED proximal to the charging port? If so, does it change...
  14. Delta Prime

    First resonate a short antenna, then impedance match it ?

    This is exercise and futility show me the math I need numbers. I need values component values frequencies you’re talking out of your azz.
  15. Delta Prime

    First resonate a short antenna, then impedance match it ?

    Your question makes no sense. You must possess a firm foundation based on theory before you start designing anything.Please elaborate. Is this a 50 ohm transmission line? What frequency? Physical length of an antenna can be designed to achieve resonance at a particular frequency wavelength What...
  16. Delta Prime

    Wanted: anti-static storage foam

    Anti-static EVA foam is made of PE (PolyEthylene). The only difference is EVA (Ethylene Vinyl Acetate) literally stinks! It has a horrible odor. The noxious odor will permeate clothing, drapery, bed-sheets, Also that eBay ad, says it’s good for sound insulation; which is probably true, because...
  17. Delta Prime

    Music that makes you smile

    Hey!Thats MaxHeadRoom! I miss him… :(
  18. Delta Prime

    Wanted: anti-static storage foam

    Conductive ,Static Dissipative and/or Antistatic Foam. These Urethane Foams contain conductive carbon black and have permanent conductive properties. A widely accepted surface resistivity method is ASTM D257. You may also see them in the color pink, polyethylene but that is a different animal...
  19. Delta Prime

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

    This is true you are a wealth of information. Thank you for your contributions. I was not addressing you. :) But I did have to take you off my ignore list just for this moment.
  20. Delta Prime

    LED lamp goes "poof"

    So have you! You have made comments to help others I think it is time for you to introduce yourself. This is a community. I have been corrected many times which is a wonderful thing. We all do it with the best of our ability so who the hell are you? Also drop the AI crap you’re better than that...
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