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  1. bertus

    Question about op amp dual supply circuit...

    Hello, The little books of Mims will have several simple circuits with some explanations: https://archive.org/details/folkscanomy_electronics?tab=collection&query=mims&sort=-publicdate Also this book might interest you: https://archive.org/details/fe_Practical_Electronics_Handbook_6_Edition...
  2. bertus

    Problems with my school project Automatic ON OFF lamp using LDR and MOSFET

    Hello, I have inverted the colours of the picture for better readability: R16 will reduce the current to much. I hope this is in simulation only. Also it not recomended to use the circuit as it is connected to the mains and can be lethal. Only one post and no reaction from the TS. Bertus
  3. bertus

    Question about op amp dual supply circuit...

    Hello, Tubecad has a lot of circuits for power splitters (virtual ground circuits): https://www.tubecad.com/2018/02/blog0412.htm Bertus
  4. bertus

    Comedy Thread

  5. bertus

    Taking on a lot at once... Eeeek.

    Hello, As for books on electronics, have a look in this library of the Internet Archive: https://archive.org/details/folksca...ion&sort=-publicdate&and[]=language:"English" Bertus
  6. bertus

    Taking on a lot at once... Eeeek.

    Hello, The partner website All About Circuits has a couple of "books΅ online. You can find them in the education section here: https://www.allaboutcircuits.com/textbook/ An other website with a lot of linkpages with a lot of subjects is the EDUCYPEDIA. Each link on the main page will give you...
  7. bertus

    Looking to update older telescopic antenna to modern one (adapter?)

    Hello, That look like a tulip connecor, also known as a RCA connector. Then you could make a simple active antenna like in the folowing schematic: I have used it in combination with an old TRIO HF receiver. Bertus
  8. bertus

    Looking to update older telescopic antenna to modern one (adapter?)

    Hello, Has the radio an other input for an antenna connection? Then you could build an active antenna and connect that, Bertus
  9. bertus

    Looking to update older telescopic antenna to modern one (adapter?)

    Hello, It looks like the shown antenna can only be used for the FM-band of your radio. It will do almost nothing on the LW, MW and AM bands on the radio. Also the shown antenna uses a SMA connector , wich has a signal and ground connection and not a screw-on. Bertus
  10. bertus

    Help with Digiplex DGP-848 setup

    Hello, I found the following manuals online. Bertus
  11. bertus

    Help with Digiplex DGP-848 setup

    Hello, Perhaps @ChosunOne has some ideas about the system. Bertus
  12. bertus

    Rohde & Schwarz Transcope MUF 2 Manual

    Hello, @(*steve*) , I could only find the attached PDF. Bertus
  13. bertus

    Web site down?

    Hello, I noticed that no posts where made the past days. I also noticed that new registrations where possible (including some spammers, wich I already removed). Bertus
  14. bertus

    Ignition for moped

    Hello, Can you post a real screenshot or print? The moiré effect makes it very hard to read. https://en.wikipedia.org/wiki/Moiré_pattern Bertus
  15. bertus

    Singer m4 sewing machine

    Hello, In responce of @kellys_eye , have a look at this video: Bertus
  16. bertus

    Singer m4 sewing machine

    Hello, That is an 0.022 uF or 22 nF capacitor. This could be a possible replacement: https://www.ebay.nl/itm/154420281516?hash=item23f42a80ac:g:VQkAAOSwxOlhW~qp Bertus
  17. bertus

    Singer m4 sewing machine

    Hello, What is written on top of the capacitor? https://www.google.com/search?q=pme+271+m&tbm=isch&chips=q:pme+271+m,online_chips:safety+capacitor:7cSIg0buXp4%3D&hl=en-GB&sa=X&ved=2ahUKEwiQ_b3_qpOAAxWviv0HHVyfCBsQ4lYoAHoECAEQKQ&biw=1587&bih=697 Bertus
  18. bertus

    Best store to buy components for PCB's?

    Hello, Have a look at this resource: https://maker.pro/forums/resources/component-suppliers.34/ Bertus
  19. bertus

    Google plans to scrape everything you post online to train its AI

    Hello, Read this: https://www.malwarebytes.com/blog/news/2023/07/google-plans-to-scrape-everything-you-post-online-to-train-its-ai?utm_source=blueshift&utm_medium=email&utm_campaign=b2c_pro_oth_20230710_julyweeklynewsletter_paid_v2_168867428049&utm_content=google_train_ai Bertus
  20. bertus

    Identify Vintage International Rectifier Part?

    Hello, What are the readings when you use the diode test of the Multimeter? Also what are the readings between the two yellow wires (AC input as you say). It could be a packed selenium rectifier. https://www.industrial-electronics.com/sams_metallic_5.html It could be a diode array, that makes...
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