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  1. bertus

    Progress

    Hello, You can also have a lot of fun with the books from Forrest Mims: https://archive.org/search.php?query=electronics%20forrest%20mims&and[]=mediatype%3A%22texts%22&and[]=loans__status__status%3A%22-1%22 Bertus
  2. bertus

    General Advice on How to Learn Best

    Hello, The EDUCYPEDIA has pages with links to all kinds of electronic related subjects: http://educypedia.karadimov.info/electronics/electronicaopening.htm Keep in mind that the site has not been checked for dead links for some time. You can likely find old copies of the dead pages in the...
  3. bertus

    Progress

    Hello, There are different ways to do the prototyping on PCB's. You have the prototyping boards or the manhattan style prototyping. I will attach some catalog pages for prototyping boards and for the manhattan style prototyping. Bertus
  4. bertus

    General Advice on How to Learn Best

    Hello, I have learned a lot by doing. You can have a look at the pages of the eBook: https://www.electronicspoint.com/forums/categories/lessons-in-electronic-circuits.176/ There is also a section for worksheets on the partner site All About Circuits...
  5. bertus

    Help recovering fdd with bad sectors LINUX or Windows

    Hello, You can even download the old windows version from the eye: https://the-eye.eu/public/Operating%20Systems/Microsoft%20Official/ Bertus
  6. bertus

    COVID-19

    Hello, Take care. Hope things will pass soon. How is the situation in your country? In the netherlands we are in an "inteligent lockdown" as they call it: https://www.rivm.nl/en/novel-coronavirus-covid-19/questions-and-answers I am at home for the past two weeks. I am a service engineer and a...
  7. bertus

    Progress

    Hello, Good work. Perhaps the following book might give you some more ideas: https://archive.org/details/TheGiantBookOfElectronicsProjects/mode/2up Bertus
  8. bertus

    Increase 12 VAC

    Hello, 1000 yards is about 914 meter: https://www.convert-me.com/en/convert/length/?u=bryard&v=1 000 The losses on the cable will quite a bit. What size of cable is used? What 12 VAC transformer is used? What is the power rating of the transformer? Bertus
  9. bertus

    Help recovering fdd with bad sectors LINUX or Windows

    Hello, Here I found some software that claims to be able to recover floppies: https://flobo-floppy-bad-sector-repair.software.informer.com/ https://recoverit.wondershare.com/harddrive-recovery/recover-data-from-floppy-disk.html https://www.jufsoft.com/badcopy/floppy_recovery.asp bertus
  10. bertus

    Increase 12 VAC

    Hello, This is stated on the page of the kit: As supplied without heatsink it is quite safe to draw 500mA continuously. This is a very conservative current rating as the circuit is capable of delivering 1 to 1.5A if the regulator IC is fitted with a suitable heatsink (e.g. Order Code HS-TO220...
  11. bertus

    Help recovering fdd with bad sectors LINUX or Windows

    Hello, Perhaps the following site might have a utility: http://www.oldversion.com/ bertus
  12. bertus

    Increase 12 VAC

    Hello, Do you have a schematic of your AC-DC converter? When you rectify 12 VAC there will be about 15.5 Volts DC on the buffer capacitor. This should be just enough to work with for the LM7812. Keep in mind that the LM7812 might need some cooling. When it gets to hot it will shut down. Bertus
  13. bertus

    Determining AM transmitter power output

    Hello, Here is some info on wifi power levels and throughput: https://community.netgear.com/t5/Nighthawk-WiFi-Routers/WiFi-Power-Levels/td-p/1051789 https://www.smallnetbuilder.com/basics/wireless-basics/32228-an-experiment-in-wireless-power-and-range bertus
  14. bertus

    TDA2030a Amplifier I.C. Specs

    Hello, Did you calculate the voltage or power gain? https://en.wikipedia.org/wiki/Decibel Bertus
  15. bertus

    Stupid question about Resistors

    Hello, Resistors are not direction sensitive. The color code is just to determine the value. The size will determine the power. http://educypedia.karadimov.info/library/49873.pdf Bertus
  16. bertus

    Determining AM transmitter power output

    Hello, Here are some measurement circuits: http://electronics-diy.com/electronic_schematic.php?id=474 http://www.techlib.com/electronics/detect.htm Bertus
  17. bertus

    Tesla Coil Kit - help needed

    Hello, You can print the pages with the schematics to a PDF, using a PDF printer on your PC. I do this frequently when extracting datasheets from old databooks. An other source for a lot of information on tesla coils is this book...
  18. bertus

    Tesla Coil Kit - help needed

    Hello, A youtube will not qualify as documentation. There seem to be a description on scribd.com: https://www.scribd.com/document/204870628/1342974992-5555-FT141121-teslastuff-4-inch-tesla-coil-plans-vs-1-3s I hate the site, as you can not download the documents without registering. The...
  19. bertus

    Value of this crystal?

    Hello, It is a SAW resonator. Bertus
  20. bertus

    Service manual/schematic Hameg HM1500

    Hello, The same question has been asked on AAC: https://forum.allaboutcircuits.com/threads/troubleshooting-repair-hameg-1500-scope.167914/ Bertus
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