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  1. bertus

    Board cleaners....

    Hello, IPA is isopropanol. https://en.m.wikipedia.org/wiki/Isopropyl_alcohol Bertus
  2. bertus

    Library of old books, magazines and textbooks on All About Circuits

    Hello, Here is a link to the thread i created some time ago on All About Circuits: https://forum.allaboutcircuits.com/threads/library-of-old-books-magazines-and-textbooks.142550/ Bertus
  3. bertus

    Library of old books, magazines and textbooks on All About Circuits

    bertus submitted a new resource: Library of old books, magazines and textbooks on All About Circuits - books magazines Read more about this resource...
  4. bertus

    Help identifying USB connector for Dell docking station

    Hello, It looks severely burned. Are there no other parts damaged, that are connected to that port? Is it through hole? https://nl.rs-online.com/web/p/usb-connectors/8006848 Bertus
  5. bertus

    Comedy Thread

  6. bertus

    Remote shotgun blast sound

    Old thread , closed
  7. bertus

    High Incremental Drain impedance (from the book The art of electronics)

    Hello, And here: https://forum.allaboutcircuits.com/threads/high-incremental-drain-impedance-from-the-book-the-art-of-electronics.203649/ Bertus
  8. bertus

    Schematic question ...

    Hello, Have a look at the pages of the attached PDF from 13 and on for the use of a center tapped transformer. Bertus
  9. bertus

    Schematic question ...

    Hello, Some diodes from the 1N5400 series might work. The 1N5401 is rated for 70 Volts RMS and 3 Ampere. An higher number like 1N5407 can also be used. Bertus
  10. bertus

    Schematic question ...

    Hello, What is the transformer rating? What type of diodes is used? Bertus
  11. bertus

    Schematic question ...

    Hello, For a larger current capability, you will need a larger transformer. Just placing bigger diodes does not work. Bertus
  12. bertus

    Mixing output from 3 op amps

    Hello, You will find a lot of decent circuits on the following site: https://sound-au.com/projects.htm Bertus
  13. bertus

    Range on PWM circuit not good

    Hello, You already have a thread for your halogen pwm dimmer: https://maker.pro/forums/threads/is-there-anyway-this-circuit-could-be-improved.301445/ Bertus
  14. bertus

    Is there anyway this circuit could be improved?

    Hello, You could also try the following circuit: https://sujjad.wordpress.com/2013/05/21/pwm-generator-using-ic-555/ Make C1 1 nF for higher pwm frequency. Bertus
  15. bertus

    help with IR2110 chips

    Hello, Where are the capacitors on the 7805? Bertus
  16. bertus

    help with IR2110 chips

    Hello, Read this thread on AAC: https://forum.allaboutcircuits.com/threads/decoupling-or-bypass-capacitors-why.45583/ Bertus
  17. bertus

    help with IR2110 chips

    Hello, I would say all power carrying lines shoud be wider. So the in and output lines of the inverter, the drain and source lines of the mosfets and the ground lines for the mosfets. Bertus
  18. bertus

    help with IR2110 chips

    Hello, Watch the gate source short on Q1. Also the powersupply is given as -12 V. I assume that that should be + 12 Volts. Bertus
  19. bertus

    GE Washer Motor Control Board 5KMC145YTA008S Diode Rectifier burnt

    Hello, There are no pictures. You can upload the pictures using the Attach files button below the reply window. Bertus
  20. bertus

    File size limit for uploading attachments

    Hello, @Alec_t The maximum file size for the attachments is about 5 Mb. Bertus
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