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  1. bertus

    Voltage Converter - Electric Heater Project

    Hello, An inverter will never give more power out that you put in. There will even be a conversion loss, depending on the efficiency of the inverter. Bertus
  2. bertus

    arduino digital pin output power question

    Hello, For the mega look here: https://www.electronicshub.org/arduino-mega-pinout/ Bertus
  3. bertus

    arduino digital pin output power question

    Hello, The R3 has 14 digital i/o pins Read the technical specs on this page: https://docs.arduino.cc/hardware/uno-rev3 Bertus
  4. bertus

    a theory to possibly get a 1000 volt super capacitor

    Hello, You will need to learn a lot about capacitors. Read the following pages: https://en.wikipedia.org/wiki/Capacitor http://www.iequalscdvdt.com/ Bertus
  5. bertus

    Car Microphone Question

    Hello, Dont count on dragons answer. The following pages will give you more info on 2 and 3 wire microphones: https://sound-au.com/articles/mic-electret.htm http://sound-au.com/project93.htm Bertus
  6. bertus

    Elenco EK-12A Strobe Light Kit schematic

    Hello, Does the attached PDF help? Bertus
  7. bertus

    Identify a PCB

    Hello, Did you have a look at the Internet Archive for books and magazines of Elektor? https://archive.org/search?query=elektor&and%5B%5D=mediatype%3A%22texts%22 Having a closer look at the PCB, it does not look like an Elektor PCB. Elektor PCB's make use of octagon pads. As far as I can...
  8. bertus

    And now something weird

    parrot as witness for a murder case: https://www.indiatoday.in/india/north/story/how-a-parrot-helped-agra-cops-crack-a-difficult-murder-case-182812-2014-02-26
  9. bertus

    capacitor amplifier. (its got diodes)

    Hello, Perhaps an educational kit with a breadboard might be of help: https://www.altronics.com.au/p/k8128-velleman-10-in-1-solderless-educational-kit/ Also the beginners parts kit might help you: https://www.altronics.com.au/p/k9640-tinker-parts-starter-kit/ Bertus
  10. bertus

    Hi voltage generator with caps and diodes

    Have a look at this wiki page for voltage multipliers: https://en.m.wikipedia.org/wiki/Voltage_multiplier
  11. bertus

    Estate sale finds (vintage test equipment)

    Hello, The following pages might interest you: https://bama.edebris.com/manuals/b&k/801/ https://bama.edebris.com/manuals/jackson/655/ https://bama.edebris.com/manuals/rca/wv87a/ The sabtronics could not be found. Bertus
  12. bertus

    Does LED display size matter?

    Hello, 14 segment leds displays will need an other kind of driving. What circuit will be driving the 7 segment leds? How do you want to convert that to the 14 segment leds? https://www.wikiwand.com/en/Seven-segment_display versus https://www.wikiwand.com/en/Fourteen-segment_display What led...
  13. bertus

    Does LED display size matter?

    Hello, What type (number) of dispay is used? What type of display do you want to use? There may be voltage and current differences. Bertus
  14. bertus

    Why nc is not linked to com during delay for time relay?

    Hello, How did you connect you relays? Did you see these pictures on the given page: Bertus
  15. bertus

    And now something weird

    Holstein calf with smiling face markings lands role as farm lawnmower for life https://www.abc.net.au/news/rural/2023-03-16/happy-holstein-calf-born-west-gippsland-smiling-face-markings/102104040
  16. bertus

    Need Help Identifying HDMI pin outs from a VGA Convertor to HDMI Plug

    Hello, As far as I know HDMI uses digital signals. https://en.wikipedia.org/wiki/HDMI VGA are analog signals. https://en.wikipedia.org/wiki/Video_Graphics_Array There must be a conversion step in the adapter. Bertus
  17. bertus

    HP 1707B Horizontal deflection issue

    Hello, Have a look here for the manual: https://www.jabse.com/L0hQLzE3MDdCLnBkZg-- Bertus
  18. bertus

    Are There 3 Volt MultiMeters?

    Hello, The Digi-Tool 420 A runs on 3 AAA batteries: https://toolsidee.ie/product/digi-tool-multimeter-420a-P8909.html The Klein-tools multimeters use 2 AAA batteries. See the attached datasheet. Bertus
  19. bertus

    Is Electrical Engineering Hard? 【Facts】

    Hello, We do not want you to fail, but your circuit do not meet the rules of electronics. That is why they fail. We have pointed you to books and websites where you can learn real electronics. (as well here in the forum and in PM's) Bertus
  20. bertus

    How to make a spark gap with a diode (almost)

    Hello, Again the "schematic" is a mess. Perhaps you should start with reading this book: https://archive.org/details/electronicsfordummies_201910/mode/2up Bertus
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