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  1. Martaine2005

    4017 Different LED count

    Not sure I follow this. You can put the LEDs in any order you like. Also diode steering for more complex control. Martin
  2. Martaine2005

    LED resistor value/voltage doesn't make sense

    Just to add to this, I had a very similar situation not long ago. Putting LEDs in a car to indicate door status was more like a disco in the dark. IIRC, I was down to less than 1mA for the desired brightness. Do your calculations as a safe ball park figure then do as @Ylli suggested. Martin
  3. Martaine2005

    Creating a 9VDC adaptor for my multimeter.

    NO, that was fricken three years ago!.:p Martin
  4. Martaine2005

    Pioneer SR60 Reverb not working properly

    Yes, that product will work, but if you have a can of compressed air cleaner, it will also work if used inverted. Now, you have already proved that the unit had either dirty contacts or a loose connection. Taking the cover off and cleaning the switches and generally touching the unit has fixed...
  5. Martaine2005

    Creating a 9VDC adaptor for my multimeter.

    I'm astonished that replacing a battery every 3 years causes you problems. If I were you, I wouldn't cut any wires to the meter. Instead, make a 'fly lead' from the DC female jack and the connector from the 9V battery. (the battery itself). Cut the battery connector away from the battery and...
  6. Martaine2005

    Marantz 4300 right channel intermittent and distorted

    Do you have an adjustment pot on the back somewhere? Some do. Perhaps the tech adjusted it? For simplicity, you might want to check what caps were used and where. I know some techs that only replace some, not all. Did you get a receipt with the information on? Martin
  7. Martaine2005

    Variable psu troubleshoot

    I have never tried anodizing but have watched the process. What metals are you referring to? Aluminium is probably the most common. Make sure your solution ratio is good and the most important factor is to keep the piece close to the lead without touching. Some people use Aluminium plate instead...
  8. Martaine2005

    what is AC dual 24V?

    You can power this with DC. You will have a voltage drop from the bridge rectifier. You can connect your DC input directly where the bridge DC + and - were connected to avoid the diode drop.. Without any specifications, who knows whether batteries can or will power the device for any specific...
  9. Martaine2005

    Pioneer SR60 Reverb not working properly

  10. Martaine2005

    Changing a BT receiver

    Any chance of sharing? Martin
  11. Martaine2005

    Electric Throw Rug Basic Circuit

    Two terminals are most likely A-D the heating element/coil/wire. The other two terminals B-C are most likely the temperature sensor. Checking A-D and B-C for resistance is fine. But did you check A-B, A-C, D-B and D-C?. Controllers don't normally go 'pop' without a reason. The fact that it did...
  12. Martaine2005

    Electric Throw Rug Basic Circuit

    They might do if you tell us what brand you have or link to your replacement controller as previously requested. Martin
  13. Martaine2005

    controlling two outputs using one push button

    Just had a thought but might not be suitable for your application. You can source and sync the 555. Just change the resistor values for both LEDs to adjust the brightness. Then you wont need any other ICs. Martin
  14. Martaine2005

    Marantz 4300

    Hi, considering that you replied to a 11 year old thread, probably better to start your own thread. Martin
  15. Martaine2005

    Pioneer SR60 Reverb not working properly

    I do see a point of concern in your first photo. Bottom left near the corner. Looks like a bad solder joint. But I couldn't get the picture to zoom in again afterwards. I think we have exhausted the visual checks and the unit will require more in depth checks. But don't give up, try cleaning the...
  16. Martaine2005

    Hi-pot test to 3 phase electric appliance

    It looks like Bertus's cat is flirting with jacklam2048's cat. But jacklam2048's cat is having none of it...:p
  17. Martaine2005

    Electric Throw Rug Basic Circuit

    More than likely a short in the old blanket. Martin
  18. Martaine2005

    Electric Throw Rug Basic Circuit

    I'd guess that because they both have 4 terminals, they are internally wired differently. Can you give us a link or links to the units you have now? It may be obvious why they are not interchangeable. I am sure photos of the controller boards will be required as well. Martin
  19. Martaine2005

    Changing a BT receiver

    A link to the new replacement should suffice. 2 reasons spring to mind, either a faulty BT unit or a different voltage source is required. Martin
  20. Martaine2005

    controlling two outputs using one push button

    I would have thought most of the CD4000 series counters will work. An Arduino mini, nano or similar. Has PWM too. I don't have any experience in MCUs but lots of members do. As for a switch, too many to say. Rotary, toggle, slide. You'll need to explain exactly how your circuit is going to work...
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