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  1. bertus

    So what's the difference between 12v at 1a and 1v at 12a?

    Hello, Have a look at the wheel of Ohm: 12 Volts at 1 Amp = 12 Watt. R = 12 Volts / 1 Amp = 12 Ohms. 1 Volt at 12 Amp = 12 Watt. R = 1 Volts / 12 Amp = 0.083333 Ohms. Bertus
  2. bertus

    Comedy Thread

  3. bertus

    Comedy Thread

    Narrow fiat
  4. bertus

    Tektronix 2467B Probe Compensation

    Hello, Wich probe are you using? What does the manual say? Here the manual and service manual can be found: https://w140.com/tekwiki/wiki/2467 Bertus
  5. bertus

    Motor is too fast

    https://en.m.wikipedia.org/wiki/Brushless_DC_electric_motor
  6. bertus

    Relay buzzing after transformer change?

    Hello, Can you post pictures of the top and bottom of the full board? The capacitors should not have AC on them. Bertus
  7. bertus

    depricated=antiquated=aging=old

    Hello, That looks like a centronics connector: https://www.globalspec.com/learnmore/electrical_electronic_components/connectors/centronics_blade_connectors The old parallel computer cable: https://www.amazon.com/C2G-02798-Centronics-Parallel-Printer/dp/B00005114K Bertus
  8. bertus

    Charging Li Ion batteries.

    Hello, Read the following pages from the battery university about li-ion batteries and safety: https://batteryuniversity.com/article/bu-205-types-of-lithium-ion https://batteryuniversity.com/article/bu-304a-safety-concerns-with-li-ion...
  9. bertus

    need help repairing 2006 "Zoundz" toy - broken rfid

    Hello, There is a tuned circuit consisting of the coil and C103. When it is out of tune, it will not work. Bertus
  10. bertus

    need help repairing 2006 "Zoundz" toy - broken rfid

    Hello, Is it this sound creating device where the part is used? https://www.amazon.com/Zizzle-Z0600704500-Zoundz/dp/B000E9TCMY Bertus
  11. bertus

    Hi there!

    Hello and welcome, For searching the web i often use yahoo advanced search: https://search.yahoo.com//web/advanced This way you will not be bothered by the google sponsored links. There are no dumb questions. I always say: You don't have to know everything, if you know where to find it. When...
  12. bertus

    Relay buzzing after transformer change?

    Hello, What is the text on the old black relays? Bertus
  13. bertus

    Power PC speakers from Car Battery

    Those are chinese watts.
  14. bertus

    Power PC speakers from Car Battery

    Hello, It states 12 volts DC at 2 to 5 Ampere. Max input power is 12 x 5 = 60 Watts. So the mentioned 400 Watts can not be done. Bertus
  15. bertus

    Power PC speakers from Car Battery

    Hello, Some sets use AC to create a positive and negative voltage inside the set. As you have a much higher voltage inside, the power may be larger. I have a mixing panel from beringer that also uses AC input and has positive and negative voltages on the opamps. Bertus
  16. bertus

    But before you ask... (Finding Service Manuals - a work in progress)

    Hello, Here is a site where old and special parts can be obtained: https://www.die-wuestens.de/eindex.htm?/ekatalog.htm Bertus
  17. bertus

    Icom 260A service manual

    Hello, Perhaps something to start with: https://elektrotanya.com/icom_ic-260.pdf/download.html Bertus
  18. bertus

    Basic LED blinker Circuit help

    Hello, And the other resistors also look shorted. Bertus
  19. bertus

    Comedy Thread

  20. bertus

    Comedy Thread

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