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  1. Delta Prime

    Power factor

    https://www.electronics-lab.com/forums/threads/leading-power-factor-correction-problem.300940/post-1857412
  2. Delta Prime

    Comedy Thread

  3. Delta Prime

    high voltage electrolytica capacitor vs oil filled

    All caps & BOLD means you’re yelling… Disrespectful when you are addressing the @AnalogKid. An analogy would be when playing poker, (five cards stud) and you’re holding aces and eights. Which is, of course…“the dead man’s hand.”
  4. Delta Prime

    Television reception antennas farce...

    TV reception antennas are nominally designed for either 75-ohm unbalanced or 300-ohm balanced standard impedances. An antenna’s impedance plot demonstrates how its input resistance and reactance vary wildly across different frequencies. While exact numbers vary by element length, all standard...
  5. Delta Prime

    Ultra-Low Power and Long-Range Design of LoRa Modules

    I would agree with you but in doing so we would both be wrong.
  6. Delta Prime

    Ultra-Low Power and Long-Range Design of LoRa Modules

    Sure if you wanna blinking LED Several kilometers away! Do you have a question? Data rates are often in the hundreds of bits per second because of the small data packets transmitted asynchronously, latency is to be expected due to limited network capacity transmitted on unlicensed bands...
  7. Delta Prime

    M-audio BX5 buzzing problem

    Correction:600 to 1.2kHz.
  8. Delta Prime

    JK Flip-Flop Toggles Twice from One Button Press

    Could you show us a schematic of your circuit, please?
  9. Delta Prime

    M-audio BX5 buzzing problem

    Are any of these the one you’re working on? M-audio BX5 D2 M-audio BX5 D3 M-audio BX5 Carbon Black How old is your unit, high probability it is your transformer primarily caused by magnetostriction a common problem with steel and/or (ferromagnetic) cores expands and contracts 95Hz to 160Hz due...
  10. Delta Prime

    Troubleshooting Soundcraft CPS 450/b Power supply

    I’ll have to take your word for that; now you have to measure the voltages at the pinouts, with the council connected; that is your load that your power supply was designed for…
  11. Delta Prime

    Book Reviews

    Possible catalogs take a look. 2004,2005,2006. https://www.farnell.com/datasheets/315866.pdf https://www.farnell.com/datasheets/71167.pdf
  12. Delta Prime

    Sony KV-2100E vertical linearity problem

    https://elektrotanya.com/sony_kv-m2100_2101k.pdf/download.html
  13. Delta Prime

    Part Identification

    Your photo is out of focus, try again, please…
  14. Delta Prime

    Cordovox piano G keys dead

    Test & take a photo of the part of the board that smokes… :cool:
  15. Delta Prime

    Need help in reverse engineering this power failure alarm circuit

    Silly me that’s what it look like from the top perspective but thank you for the photos and thank you @Martaine2005 :)
  16. Delta Prime

    Unknown chip that looks blown

    to begin with.You have to know what to ask AI. You are contributing misinformation and I believe you are doing it intentionally because you do not know what you’re talking about. I’m just giving you enough rope to hang yourself bye-bye AI… That “blown chip” is an 1.8MHz fixed frequency...
  17. Delta Prime

    Comedy Thread

  18. Delta Prime

    Multimeter stopped displaying after replacing battery

    Yes.
  19. Delta Prime

    Need help in reverse engineering this power failure alarm circuit

    Could you take another photo at a different angle of Q1 & U4 I do see some markings on it. also, can you determine the working DC voltage of the blue electrolytic capacitor? if you look on the side of that component, you’ll see marks on it please write that down. Thank you… The battery...
  20. Delta Prime

    RMS and Average Value Difference

    Thank you for your contributions AI. "Average" is the broader, general term for central tendency, while "mean" is the specific statistical calculation.
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