Search results

Search Forums New Posts
  1. Arouse1973

    Hello, Welcome! (Introduce yourself)

    Hi Cannonball and welcome to E.P, good to see you here. Looking forward to seeing what you got. :) Cheers Adam
  2. Arouse1973

    to hire someone who knows s/w turn ckt-diag into PCB Gerber fabrication files

    How complex is the PCB? Can you post a schematic and a picture of any bare PCBs you have on the forum. Thanks Adam
  3. Arouse1973

    Help With Calculations

    What school are you working at? Thanks Adam
  4. Arouse1973

    Help With Calculations

    Yes I agree Muki. Nice to see you on here at long last :) Adam
  5. Arouse1973

    Greetings!

    Hi Anton Welcome to EP, hope you enjoy your time here. Cheers Adam
  6. Arouse1973

    math problem, I lost my marbles it seems

    Yes I agree. We started off so well :)
  7. Arouse1973

    PNP Transistor to Drive LED

    I was trying to weed out why it is better to have a resistor to protect the PN junction from excess current and yes in the circuit above it's fine. I wanted the OP to think about a situation when the PN junction left like that could damage the transistor. But it didn't quite work out :) Cheers Adam
  8. Arouse1973

    math problem, I lost my marbles it seems

    That's the first one done with a good clue from Harald. Thanks Adam
  9. Arouse1973

    How sweet it is to be an idiot

    LOL, Thanks Adam
  10. Arouse1973

    math problem, I lost my marbles it seems

    Ok lets start by removing those brackets and the division sign... Do you know where to start? Adam
  11. Arouse1973

    How sweet it is to be an idiot

    And science in my opinion is very much alive, just recently they have proved that Ghosts don't exist. Well not in any other form than short lived blobs of energy. And this is not meant to start a debate :) Adam
  12. Arouse1973

    How sweet it is to be an idiot

    I would be interested in having a look when you have time PM me the contents of his thread please. Cheers Adam
  13. Arouse1973

    PNP Transistor to Drive LED

    But what about the other PN junction? Are there any issue there. The reason I said for you to look at the data sheet was to get you thinking, knowing full well the maximum rating for what I was looking for wouldn't be there. And why isn't is specified? What limitations dose this have on the...
  14. Arouse1973

    PNP Transistor to Drive LED

    Ok so that's probably going to be a 2N2907. Have a look at the data sheet under maximum ratings. Especially look for something related to the junctions of the transistor. See any issue that might arise? Cheers Adam
  15. Arouse1973

    PNP Transistor to Drive LED

    Hi John. What transistors are you using, that's the part number of the part. Welcome to EP BTW. Thanks Adam
  16. Arouse1973

    I'm a curious one!

    Hi Craig. Welcome to EP. Hope you enjoy it here. Cheers Adam
  17. Arouse1973

    I need help to solve these questions

    I think someone missed a few lessons :)
  18. Arouse1973

    R/C Relay Driver

    What current does the relay draw from 5 Volts? That's quite a low value base drive resistor you have. The max collector current for the BC547 is 100 mA so pushing more current into the base than is needed serves no purpose. And you might actually damage the transistor. Please supply the specs or...
  19. Arouse1973

    Help trying to understand a charging fault on an Xbox One Controller

    Ok no worries. Thanks Adam
  20. Arouse1973

    Hello from the English North West!

    Hi Chris Welcome to EP, good to see you here. I think you will enjoy it here, and you may learn something, I know I have. Adam
Top