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  1. Delta Prime

    Need help with a Proton 619 TV problem. Ticking clock sound...

    I think it's a very cute television you should be very proud of it.
  2. Delta Prime

    Portable charger

    Not so fast! Which one did you choose?
  3. Delta Prime

    revolving chandelier with a way to plug in led strips

    Slip Ring Do you have a hair curler it's on the end. Allows the power cord to swivel without interrupting the power flow.
  4. Delta Prime

    revolving chandelier with a way to plug in led strips

    Nail the furniture to the ceiling?
  5. Delta Prime

    This is silly, but I cannot for the life of me figure out how to remove a footswitch

    Those are all wonderful suggestions this is how you crack that bad boy open! Sawzall....
  6. Delta Prime

    What is the optimal design for loop antenna made of copper stiff wire to transmit at 81.39–90.00 kHz?

    Transmitting energy by electromagnetic fields through an air gap without any interconnecting cables is state of the art technology normally it is conducted in microwaves but now it could be done at much lower frequencies besides it's what the masses want. It has transformed my pigs ear into a...
  7. Delta Prime

    4s lithium ion 16850 batterypack bms, charger, discharge.

    If your project requires a 48 volt controller than that controller is going to expect to see 54.6 volts that's fully charged 13s 16850 in series for safety reasons cuz 48 volt controller will not discharge past approximately 48 volts. 48 volts is the nominal voltage of 13 16850's. Or put a...
  8. Delta Prime

    4s lithium ion 16850 batterypack bms, charger, discharge.

    If these are lithium ion cells then it's 4.2 volts for a fully charged cell 4.2 * 4 = 16.8 volt that .8V matters. Also concerning your diagram. I see 4 parallel, 4 Series connected Network(4s4p). This is very dangerous project! For 48 volts you going to need (13s 4p) 4.2*13=54.6V and that's...
  9. Delta Prime

    What is the optimal design for loop antenna made of copper stiff wire to transmit at 81.39–90.00 kHz?

    Stay with copper. ;) We are in competition. Research for profit! That's big money! Can't give away my secrets. “Charging your EV should be as simple as parking and walking away – the wireless charging SAE J2954 Standard gives freedom and convenience to do exactly that, safely and...
  10. Delta Prime

    Got loads of pluggable terminal blocks (from wasted equipment) - ideas on how to utilize

    Exactly, that's why your's were headed for the trash. I would have scooped them up as well. Best of luck to you.
  11. Delta Prime

    Choosing the right current sensing resistor.

    When the probe is connected to the circuit, the impedance matching of the circuit and probe determines the voltage at the input of the probe. You are loading your circuit with your probes they present not only a resistance but an inductance and a capacitance.The symptoms are exactly what you...
  12. Delta Prime

    Repair RF amplifier board

    You may be in luck. Could you possibly take a clear photo of the assist tag , on your unit, & any other information that is on the board itself thank you.
  13. Delta Prime

    Got loads of pluggable terminal blocks (from wasted equipment) - ideas on how to utilize

    Hello there..these guys? Or is it those green ones?
  14. Delta Prime

    Repair RF amplifier board

    You're the one asking questions . So you're a ham your Dxing 20 meter BAND ,14 MHz you're just following the instructions from the person who sold you a non-functioning RF board, there's one born every minute. Show me some photos of your RF board. If possible. Please, thank you.
  15. Delta Prime

    Repair RF amplifier board

    What we have here is a failure to communicate! Something is being Lost in translation. I cannot follow your explanation…I cannot help you.
  16. Delta Prime

    Thread gauge for extremely small screws?

    I was worried about that.Thank You sir. How about a do-over, I'm claiming" Mulligan" always replace your divots. information on machine screw sizes from size 000 to ½ inch diameter (past size 12, screws are called by their measurements in inches). Diameter is the nominal size of the screw...
  17. Delta Prime

    Thread gauge for extremely small screws?

  18. Delta Prime

    Fly back converter Design using UC3843

    Perhaps your architecture is of concern I usually use the laminate of the transformer as a chassis ground. I make sure there is no galvanic connection between the power return and the internal signal ground or in your case "grounds" yeah chassis analog & digital grounds. The enclosures chassis...
  19. Delta Prime

    Current drawn by a drone motor

    If it's weight is about 3 grams ,4 to 6 watts of power at 3.7V, 70000 RPM. 200mA, maybe one amp at Max. I pulled that out of blue sky. Lots of nieces and nephews and stuff buzzing around the house "drones".
  20. Delta Prime

    Anyone have a Behringer UB2442FX mixer Power Supply schematic please?

    Designed by the late Philip Kubicki. (RIP) . He died before I was born, I'm a big fan of his electrical engineering talent. Best of luck to you. Talk about pots, pups and axes! You got to shred it brother. Peace out!
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