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  1. Martaine2005

    series parallel RC circuit help

    Ah, but the wording was "fully charged". I agree with my limited knowledge that all responses here are correct!". The poor OP had a question. The only way to answer that is by using the questions format!. If not he/she gets more confused. There is a reason for explaining physics, however, there...
  2. Martaine2005

    Burnt out Blanket Controller

    My sentiments exactly. Harold, are you sure it was an accident!!? You may need to stock up on more headache tablets!:p Open the controllers and take some nice clear , close pictures of either side of the board. And post them here. Martin
  3. Martaine2005

    ph4148 vs 1n4148

    Hi foTONICS, You can safely say they are the same from a different manufacturer. PH was Philips. There are others too with different letters. Martin
  4. Martaine2005

    op-amps with high gain

    Hi Imno, Have a search for Dual op-amp or in-amp. Is that what you mean by "two channel"? Read the datasheets to find the one that you require. Most have a wide range of voltage input (that I read). 3v -30v, so your 18v supply would be perfect. But Dual supply does seem to be 16v. Here is a dual...
  5. Martaine2005

    DC motor undervoltage (continued)

    Hi John, That should be fairly easy to reproduce. My 12v DC Minicraft tools have speed control. Putting the tool under load whilst reducing the voltage increases the current as the motor stalls. Same applies to my AC power tools. Have the speed at full and cutting / loading the tool whilst...
  6. Martaine2005

    cracked flyback ferrite

    Hey Rick, You can certainly glue it . It may lose a little of it's magic Flux, but for the likes of you and me, we would never notice. Martin
  7. Martaine2005

    Volts and Amps

    SHhh..........:D
  8. Martaine2005

    diodes

    I think the bottom line is a relay for any aux lighting. It may work very well, but were the supply wires getting hot or warm?. Best to do a proper install and do it properly! A couple of hours work and you know it is final. BTW, you can put diode steering in place provided you use the correct...
  9. Martaine2005

    powered computer speaker

    Ooh, you have come out to play! But he bought two stereo amps! to replace mono amps.. I doubt they were mono. Just a stereo amp with speaker and an aditional speaker lead for the other speaker. My job here is done. Beam me up scotty...:p
  10. Martaine2005

    Volts and Amps

    I think you are doing a great job Dave of being a monitor! Make sure the threads don't go off track. He will learn faster without being confused by people like @CDRIVE . Keep up the good work. :)
  11. Martaine2005

    powered computer speaker

    @CDRIVE , I did need you ! The OP KNEW! Ok, never mind, youre still not allowed to play!. I'll ask mommy if you can play tomorrow.. @BobK It will be hard work, but try and read it from the beginning. I think I managed to sort half the problem. Even 3/4s... Martin
  12. Martaine2005

    I've Just Been Spanked!

    Same chin!, Same nose, Same forehead ...:p:eek:
  13. Martaine2005

    powered computer speaker

    Hehehe, you got that right Bob. You have to read between the lines...And make it up as you go along!:p Martin
  14. Martaine2005

    need help with identifying this part

    I would always stand behind Dave..He is an engineer, I am not. He is wise, I am not. He is ugly, I am not!:p Martin
  15. Martaine2005

    need help with identifying this part

    Ohh, sorry, I thought you wanted one of me:D Yes I did. And replied along with Dave... Martin
  16. Martaine2005

    need help with identifying this part

    Only if you insist!
  17. Martaine2005

    need help with identifying this part

    What ever it is, doesn't look like it wants to reset!:) Martin
  18. Martaine2005

    need help with identifying this part

    Yes, that is the same NTC as in the other thread I believe. Martin
  19. Martaine2005

    need help with identifying this part

    UL approval..
  20. Martaine2005

    need help with identifying this part

    Just go to 'upload a file' bottom left .
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