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  1. Arouse1973

    My MCU circuit can't start by itself

    What voltage are you running it from? Adam
  2. Arouse1973

    My MCU circuit can't start by itself

    It's all the config bits that might be worth looking at, as it seems strange it works on a 4MHz crystal and that's all. Adam
  3. Arouse1973

    measuring signals above 1MHz

    I think that's a good idea, I suppose it depends on how much you paid for the scope in the first place. Adam
  4. Arouse1973

    Voltage to current converter circuit

    The buffer needs to be what is driving the load. Think of inserting it inside the op-amp and the output of the buffer now being the output of the op-amp. Adam
  5. Arouse1973

    Twin LED Flasher

    Yeah valid point Kris, but this is just an example of how people assume the wrong thing and still get the same results. This happens all the time and this is why people don't look for the correct answer because they think they know it. Look at all the recent hoo-hah about BJTs. But I get your...
  6. Arouse1973

    My MCU circuit can't start by itself

    Can you supply the source code maybe someone on here might spot something. Adam
  7. Arouse1973

    Schematic for a Crate VXF5112 Guitar Amp?

    Correct Harald this is why some people modify the heater voltage to be d.c to remove the Hum. Adam
  8. Arouse1973

    Voltage to current converter circuit

    The op-amp used was modified to have a low output resistance. As I told you a buffer might be needed if you can't find an op-amp with enough current handling capacity. Adam
  9. Arouse1973

    Twin LED Flasher

    This is the start of my resource but I thought it fitting to post as a reply to this thread. The world of Physics, shall we say can get a bit confusing at times, that’s probably an understatement. There are so many different opinions on what actually happens regarding current, energy, electric...
  10. Arouse1973

    How Transistors Work

    Good I will help you all I can. It is nice to have someone who doesnt think they will learn everything in five minutes. But if you have any burning questions you are really struggling with then message me if you dont want to post it I know some simple questions can seem embarising to ask. I was...
  11. Arouse1973

    Twin LED Flasher

    Yes you do and the problem which is confusing is the conflict of electronics and physics. So there you are thinking you got this transistor stuff all sorted out. Current flows from collector to emitter dependant on applied base emitter voltage (NPN), yep got that. Then the physics tell you it...
  12. Arouse1973

    How Transistors Work

    It will soon became clear young skywalker. In about 10 years or so, dont give up its worth it. Adam
  13. Arouse1973

    Schematic for a Crate VXF5112 Guitar Amp?

    Is this a valve amp? Adam
  14. Arouse1973

    Twin LED Flasher

    Your just like me I am never happy until I know how all this works. Some engineers are just happy knowing the basics. And dont get me wrong some of the worlds greatest know far more than me and have less physics experience. So it all depends on your take on all this. But you dont have to know...
  15. Arouse1973

    Twin LED Flasher

    I think you need to only concern yourself with electron holes in relation to semiconductors. Your just going to confuse yourself if you try to relate this to current and charge distribution inside a capacitor. It is far better at this stage to just concentrate on how the components work...
  16. Arouse1973

    ID Please

    :)
  17. Arouse1973

    measuring signals above 1MHz

    There is a little push button next to CH1 scope input which is channel select. As Bob said have you checked this, it looks like it is out which might be channel 2. Press it in or out and see it that helps. Adam
  18. Arouse1973

    ID Please

    Possibly a Glass Encapsulated NTC Thermistors. Adam
  19. Arouse1973

    Comedy Thread

    Made me smile :)
  20. Arouse1973

    Schematic for a Crate VXF5112 Guitar Amp?

    Hi Ken 60 Hz hum that does not change with volume is normally caused by a ground loop. Have you moved into a different room / house or added any other pieces of equipment to your set up? Adam
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