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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Maximat

  1. M

    Circuit building

    OK I managed to check the bulbs, but I could only test it on the following voltages On 1.22 Volts (battery) it gave me 0.09 Amps On a wall power supply 3.43 Volts it gave me 0.14 Amp This is what all I could do.
  2. M

    Circuit building

    Well I don't know exactly but I will check with the meter and post again
  3. M

    Circuit building

    Its sound simple enough, does the above formulae work for this combination? (I'm a super noob in electronics, as said earlier, I only know how to assemble kits :S ) and what's the zener diode for? I know that the diodes are normally used to let curent flow one way only. is the 1N4007 a...
  4. M

    Circuit building

    OK this is nothing out of this world, the whole project is about a model Railroad. The loco engines normally have a 16 VDC lamp on them, but since the locos are never run at ful speed, but normally at the lowest speed ( approx 6 volts ) the lamps are very dim, and not realistic. So I wanted to...
  5. M

    Circuit building

    but the resistors reduce the voltage, so if I make a reduction for teh 3V LED, it will only light up at its full brightness when the voltage is at 16 VDC*. I am applying this light to a voltage controller that goes from 0 to 16 VDC*, at 4 volts I have something else that will be activated, so...
  6. M

    Circuit building

    Ok, this is done and works, but is there any other, more compact way of replacing this whole circuit. I am trying to put all this in a very tight place, and the only space I have is for a bulb and maybe a transistor. I will use the above for other projects, but for the one I'm in at the...
  7. M

    Circuit building

    I assembled it as Audio showed me, ( cause I started before you posted yours Eric. It works, so to say with the bulb, but when I try to regulate the pot, it doesn't add light slowly, but sort of in steps, from dimm to bright, even if I just turn it a few millimeters. I will try next adding...
  8. M

    Circuit building

    I need this circuit to use it with a 1.5Volts (max. 3V ) bulb or LED, so that it lights up to a full brightness at low voltage but when more voltage is applied it won't burn out. The maximum voltage to be used is not more then 16 VDC ( mostly it will be 14.8 VDC ) Kindly advise if this is...
  9. M

    Circuit building

    Hi, I'm new in here and my knowledge about electronics is very little. From time to time I have some small circuits to build and I like to do them, but other times I find only diagrams and I don't know how to read them and convert them to the board. I try hard but sometimes I get mixed up and...
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