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  1. bertus

    Problems with Sansui MDVX 2003

    Hello, From a report: How to fix Sansui hi fi model MDVX 2003 lBT which just cut off while still playing and now its not show if it's on ? @shon , As this was posted in a report, you would not get any help. I have created a thread for you. Bertus
  2. bertus

    Unknown Manufacturer's Logo

    Hello, I am using Firefox as browser and have the uBlockOrigin addon to block a lot of the adds. https://www.mozilla.org/en-US/firefox/new/ https://ublockorigin.com/ Bertus
  3. bertus

    Pets on Electronics point

    Hello, Do you have pets at home? Here are my three cats in their castle: Bertus
  4. bertus

    Unknown Manufacturer's Logo

    Hello, I used the partnumber FR1003A in the search engine Yahoo that I always use: https://search.yahoo.com/web/advanced?ei=UTF-8&fr=altavista&p= Bertus
  5. bertus

    Unknown Manufacturer's Logo

    Hello, The original diode you show is from Hornby Electronic. Alldatasheet only shows the single diode on the website. From an other manufacturer there is the double diode datasheet available. Bertus
  6. bertus

    powering 2 LEDS or Neons from a 240v feed?

    Hello, Wich old radio is it? You might find more info on the radio in the radiomuseum: https://www.radiomuseum.org// Bertus
  7. bertus

    ZVS 1000W/2000W draws only 3V

    Hello, To use full power, you will need a powersupply that has some headroom. I would say that the powersupply must be able to provide at least 20 % more power than the boards require. On the page of the 2000W board they recommend an 48 V 50 A powersupply. That would be 20 % more than the 2000...
  8. bertus

    Magnifying light voltages

    Hello, When I look at the Pavouk website, that capacitor has values of 22 nF or 100 nF. Bertus
  9. bertus

    powering 2 LEDS or Neons from a 240v feed?

    Hello, RS has neon bulbs in several sizes: https://uk.rs-online.com/web/c/lighting/neon-lamps/neon-indicator-lamps/ Bertus
  10. bertus

    powering 2 LEDS or Neons from a 240v feed?

    Hello, Do you have the neon bulbs? Have a look here: http://www.bristolwatch.com/ele/neon.htm Bertus
  11. bertus

    Magnifying light voltages

    Hello, I have updated the schematic: Only the value of C4 worries me. Did you get the value correct? Bertus
  12. bertus

    Really need help!

    Hello, The power supply has AC input. The power supply is 12 Volts DC on the output. Connect the power supply this way to the controller: Bertus
  13. bertus

    Magnifying light voltages

    Hello, That looks like 4n7 to me. Bertus
  14. bertus

    Magnifying light voltages

    Hello, When I look at the schematic I made, it looks a lot like the luxtek 8W, from the site I gave on page 1: One of the differences is that D2 is not there and there are diodes on the basises of the transistors. I don't get the value of C7 407j ?, that would be very large. Bertus
  15. bertus

    Magnifying light voltages

    Hello, Then this could be the schematic: Do you also have some values? Bertus
  16. bertus

    Magnifying light voltages

    Hello, Did you also identify the capacitor between the DB3 and the line 0? It is a green one on the picture. Bertus
  17. bertus

    Magnifying light voltages

    Hello, You are still missing some parts: Here is what I can see to annotate: I do not see a R3. Bertus
  18. bertus

    Magnifying light voltages

    Hello, I have tried to make a "handdrawn" schematic in Kolourpaint. Can you fill in some values? I have used this public domain sheet for the components to copy and paste: Bertus
  19. bertus

    Magnifying light voltages

    Hello, When it is 510 K, an 470 K will likely work. Bertus
  20. bertus

    Why do I not get e-mails about replies to threads I am involved in here?

    Hello, I have started a conversation with eerob and pointed him to this thread. If some emails get stuck in the spambox, add the wanted adresses to the address book of the email program. Bertus
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