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Forum: Elementary Electronic Questions

Want to learn electronics and need a points to start? Need help in your electronics related homeworks? Need a seminar topic? All questions can be asked here.

  1. Sticky Thread Sticky: Resources for some of your basic electronics engineering questions

    Started by EastbayA, 17th April 2018 17:11
    • Replies: 0
    • Views: 8,090
    EastbayA
    17th April 2018, 17:11 Go to last post

  2. Sticky Thread Sticky: Before Post here please read this

    Started by Fragrance, 22nd February 2011 08:38
    • Replies: 0
    • Views: 36,853
    Fragrance
    22nd February 2011, 08:38 Go to last post

  3. Sticky Thread Sticky: READ BEFORE YOU POST - do not post e-books, ieee papers here

    Started by pranam77, 21st August 2009 09:05
    • Replies: 0
    • Views: 35,474
    pranam77
    21st August 2009, 09:05 Go to last post

  1. Resistance of component bag made of "reddish" ESD plastic?

    Started by treez, 29th March 2020 18:45
    • Replies: 16
    • Views: 524
    c_mitra
    Today, 05:24 Go to last post

  2. Voltage drop using 1 MOS

    Started by Agrum, Yesterday 22:02
    • Replies: 2
    • Views: 124
    dick_freebird
    Today, 04:11 Go to last post

  3. Cw decoder by ik3oil

    Started by radium98, 30th March 2020 10:03
    2 Attachment(s)
    • Replies: 1
    • Views: 165
    betwixt
    30th March 2020, 20:59 Go to last post

  4. [SOLVED] What is the role of this transistor?

    Started by VTI_16V, 29th March 2020 16:33
    1 Attachment(s)
    • Replies: 5
    • Views: 269
    VTI_16V
    30th March 2020, 17:38 Go to last post

  5. Dimmer lamp 220v ac (resistor values)

    Started by anouxr, 29th March 2020 16:03
    1 Attachment(s)
    • Replies: 2
    • Views: 197
    Easy peasy
    30th March 2020, 04:49 Go to last post

  6. Why On startup LED1(connceted at GPIO-0) ONCE gets blink at ESP-01 module

    Started by dattlara76, 19th March 2020 22:13
    3 Attachment(s)
    • Replies: 9
    • Views: 1,018
    betwixt
    23rd March 2020, 22:41 Go to last post

  7. MCU Vcc to GND SHORT

    Started by manisibitvr, 23rd March 2020 07:33
    • Replies: 6
    • Views: 409
    schmitt trigger
    23rd March 2020, 16:46 Go to last post

  8. Which type of SMD capacitors are more robust against PCB flexion cracking?

    Started by treez, 28th February 2020 23:37
    • Replies: 5
    • Views: 591
    schmitt trigger
    22nd March 2020, 17:29 Go to last post

  9. MOSFET capacitance estimation

    Started by CAMALEAO, 21st March 2020 03:02
    • Replies: 1
    • Views: 298
    dick_freebird
    21st March 2020, 03:55 Go to last post

  10. Inductor question. Why current goes up then down instead of decreasing with frequency

    Started by Jeanguypataterubberboot, 19th March 2020 04:08
    • Replies: 9
    • Views: 485
    Easy peasy
    20th March 2020, 09:08 Go to last post

  11. [moved] Speaker wattage not known

    Started by pgr2002, 19th March 2020 06:01
    • Replies: 2
    • Views: 297
    BradtheRad
    19th March 2020, 08:56 Go to last post

  12. Failure mode of aluminium electrolytic capacitor....open cct..not short cct?

    Started by treez, 15th March 2020 13:24
    • Replies: 5
    • Views: 535
    dick_freebird
    16th March 2020, 23:14 Go to last post

  13. 250VAC, 4A fuse used at 700V input to SMPS?

    Started by treez, 14th March 2020 22:51
    • Replies: 11
    • Views: 668
    betwixt
    15th March 2020, 17:46 Go to last post

  14. Solid polymer electrolytic capacitor more vibration susceptible than wet electrolytic

    Started by treez, 15th March 2020 12:37
    • Replies: 1
    • Views: 253
    wwfeldman
    15th March 2020, 13:10 Go to last post

  15. What is 'Pre voltage'?

    Started by dk01152, 13th March 2020 15:03
    • Replies: 3
    • Views: 329
    KlausST
    13th March 2020, 21:39 Go to last post

  16. Super capacitor electrolyte problem

    Started by RachelAnne289, 10th March 2020 10:57
    1 Attachment(s)
    • Replies: 1
    • Views: 393
    wwfeldman
    10th March 2020, 17:21 Go to last post

  17. Impedance question matching/bridging

    Started by Swend, 3rd March 2020 17:07
    1 Attachment(s)
    • Replies: 4
    • Views: 537
    FvM
    9th March 2020, 23:28 Go to last post

  18. Class ab amplifier dc biasing

    Started by paulmdrdo, 7th March 2020 15:29
    1 Attachment(s)
    • Replies: 7
    • Views: 576
    paulmdrdo
    9th March 2020, 10:09 Go to last post

  19. PMOS and difference amplifier simulation questions

    Started by d123, 7th March 2020 14:06
    2 Attachment(s)
    • Replies: 2
    • Views: 273
    d123
    7th March 2020, 22:09 Go to last post

  20. Arduino programiming in light sensor

    Started by RachelAnne289, 6th March 2020 10:51
    1 Attachment(s)
    • Replies: 1
    • Views: 227
    betwixt
    6th March 2020, 12:02 Go to last post

  21. soldering with silver content

    Started by MikePT543, 21st February 2020 21:09
    • Replies: 4
    • Views: 575
    hunghoang
    5th March 2020, 10:47 Go to last post

  22. Magnetic field state-space representation

    Started by mel2304, 3rd March 2020 04:00
    • Replies: 1
    • Views: 314
    wwfeldman
    3rd March 2020, 20:18 Go to last post

  23. Leaded solder vs LeadFree solder

    Started by joniengr, 29th February 2020 02:25
    • Replies: 3
    • Views: 451
    schmitt trigger
    3rd March 2020, 17:01 Go to last post

  24. Understanding the concept of Charge Trapping

    Started by javierh.santiago, 2nd March 2020 22:29
    • Replies: 1
    • Views: 293
    dick_freebird
    2nd March 2020, 23:56 Go to last post

  25. Oscilloscopes and earth problem

    Started by Winsu, 27th February 2020 19:08
    • Replies: 4
    • Views: 497
    Winsu
    2nd March 2020, 23:30 Go to last post

  26. Power resistor temperature de-rating seems too harsh

    Started by treez, 29th February 2020 18:38
    • Replies: 7
    • Views: 542
    Easy peasy
    1st March 2020, 20:20 Go to last post

  27. IC TDA2004R Electrical specifications

    Started by wondrous, 27th February 2020 12:41
    2 Attachment(s)
    • Replies: 7
    • Views: 571
    wondrous
    28th February 2020, 13:41 Go to last post

  28. Voltage sense using summing amplifier

    Started by Murod, 28th February 2020 05:09
    2 Attachment(s)
    • Replies: 4
    • Views: 366
    KlausST
    28th February 2020, 08:14 Go to last post

  29. Waveform saving upon trigger in windows from Oscilloscope

    Started by joniengr, 15th February 2020 09:56
    • Replies: 7
    • Views: 966
    FvM
    25th February 2020, 14:55 Go to last post

  30. Rise times and fall times of fast transistors seem way too long

    Started by htg, 22nd February 2020 03:18
    • Replies: 3
    • Views: 591
    dick_freebird
    22nd February 2020, 22:44 Go to last post
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