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  1. Kain

    Inductor

    Cdonke, if you know the purpose of this inductor in the circuit you will be able to calculate its inductance as well. It's probably a filter by the way. Actually I just checked - it's a filter yes. Notice that you have the same LC filter on the input and output. It is put there to cut...
  2. Kain

    Frequency generator to shut off street lights.

    Light has both electromagnetic wave characteristics, but has particle characteristics as well. So, if you think about it, what you are trying to do is basically affect a photocell to switch only based on waves, which will deffinately not work. Photoelectric effect is not based on the wave nature...
  3. Kain

    Inductor

    Cdonke, I assume you are trying to build some radio transmitter. The formula that Quantum gives you is approximation by the way that sometimes works sometimes not (for me it did and didn't as well), and it is for single layer coil, meaning that you cannot do (you can but the error will be...
  4. Kain

    0-30 Vdc Stabilized Power Supply

    Dazza, what kind of panel metters do you use on first place? Can you upload the schematic that you use to wire them up - I mean their power supply - dipolar +-5V or single 9V, or whatever it is? I use panel meters too, and I power up everything from the same transformer that I use for the PSU...
  5. Kain

    0-30 Vdc Stabilized Power Supply

    Ok, I managed to fix it finally. The solution was as I suspected - common ground. I used the same transformer as for the PSU and made zener stabilized +-5V with mid point output, and I filtered the output potential with 1000mF/25V cap. Now it works absolutely stable - the measured value does't...
  6. Kain

    0-30 Vdc Stabilized Power Supply

    Ante, I already tried this, and just to make sure I did it once again with no improvement. I tried cap in the iput before the voltage devider as well as after the devider - no change at all. I wonder how the unit would work if I hook it up in the other way - I mean powered by +-5V. I see it has...
  7. Kain

    0-30 Vdc Stabilized Power Supply

    Ok, now I got really weird problem. As I posted earlier in this forum: http://www.electronics-lab.com/forum/index.php?board=2;action=display;threadid=128;start=120 I'm trying to use digital panel meters for this PSU project. Everything seemed to be alright untill I tried to measure voltage from...
  8. Kain

    A Fishy Component

    You are very welcome. What do you plan to do with this thing of yours, besides breaking it? ;D Just kidding though - I'm judging by my actions probly hehe 8)
  9. Kain

    A Fishy Component

    Hum, I don't think it's cap what you are looking at... I just don't picture cap marking with R ???.... looks as non-sence to me. However, SMD stands for Surface Mount Device, or in "english" ;D it means that there are no holes in the PCB in order for the element to be mounted...
  10. Kain

    A Fishy Component

    Hum, I don't know what to say now haha. There are too many small black things going arround on PCB. May be it's SMD resistor? ???
  11. Kain

    0-30 Vdc Stabilized Power Supply

    Hum, so he pretty much did what was thinking to do. I think after I transfer it to the aluminium I will use some transparent self-adhesive film to protect the image. Thanks tho :)
  12. Kain

    A Fishy Component

    Yup. It looks exactly like a regular capacitor but with one more rectangle drawn in between the plates. I posted picture too but for some reason it doesn't appear ???. It was gif as well - should be supported huh
  13. Kain

    A Fishy Component

    My guess is that this is the quartz crystal. Those are used in any generators since they provide high signal stability and acuracy (if the crystal is good though ;D). The remote control in this case would work on the fundamental frequency or on certain harmonic (in your case it's probably...
  14. Kain

    0-30 Vdc Stabilized Power Supply

    I this is a little bit off topic but I want to do nice front pannel for the PSU and I wonder how I can project some writting on alumunium pannel... I was thinking of doing it in the same way as some of us do the PCB - tonner transfer. However, if I do so I don't know how strong the layer would...
  15. Kain

    Best PCB design software

    Yey, nice link Ante! :)
  16. Kain

    PSX Mod Chip

    This is a little off topic but I was considering modding few PS 2 and other consoles myself. I wonder how high is the actual risk to permanently mess up the console hardware with this modification in case something goes wrong with the programming? Ani ideas?
  17. Kain

    Best PCB design software

    Yes, Protel does have simulation - I would say a lot of tools for simulation but I'm not that familiar with them yet. About what it can do - it is a kind of standard EE CAD i think for it has most important simulations integrated, manual or auto-routing for PCB with support up to 16 layers...
  18. Kain

    Best PCB design software

    It seems like I'll be trying this eagle pretty soon ;D. As for protel it's not really that bad with the lib once you get used to it. I personally got a pdf manual for it and it had lots of stuff explained. The only thing I don't know how to do is force the daarn thing to do PCB in one layer...
  19. Kain

    Best PCB design software

    Hello. I've been playing arround with electronics and of course with time circuits get more and more difficult and boards become hard to route by hand. So the first thing I heard about software wise was Protel 98 since my friend was using it and he said it's good. I also noticed it has lots of...
  20. Kain

    0-30 Vdc Stabilized Power Supply

    True, I noticed that the sheme I was reffering to actually does have voltage devider. Hopefully I didn't blow up the thingy ;D.
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