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  1. Steve_hi

    0-30 Vdc Stabilized Power Supply

    Thank you very much for the help Audioguru I will order the parts this weekend and should have them in about 3 weeks from futurlec they have very good prices but slower than the second coming. bye
  2. Steve_hi

    0-30 Vdc Stabilized Power Supply

    Is there a new schematic with a parts list for an improved version?
  3. Steve_hi

    0-30 Vdc Stabilized Power Supply

    Hi Audioguru I,m going to make the faulty one first and get you to walk me through the tests of it then after it fries I'll make it properly.......................I hope ;)
  4. Steve_hi

    0-30 Vdc Stabilized Power Supply

    Hi guys This is a very entertaining thread, so much so that I, as a beginner will now try to make this power supply I hope I can get past putting the first part on a strip board keep the debate going gentlemen it's better than T.V ;D
  5. Steve_hi

    Help With Ground Please

    Hi I made an ECG and when I do a continuity test for the positive battery terminal and the # 8 pins of the TL072's i have continuity, but not on the center tap of the 2  9 v batteries, and when I check for continuity of the negative terminal and the number 4 pins of the op amps ihave continuity...
  6. Steve_hi

    12v power supply?

    http://www.electronics-lab.com/projects/power/009/index.html Build It ;D
  7. Steve_hi

    Laying out a strip board

    Thanks for all the help to everyone I have jusst downloaded Stripboard magic now I will start playing with it and hope to learn it thanks to all of you Steve
  8. Steve_hi

    Laying out a strip board

    Hi I would like to know if there is a shareware program that i could use to layout the components of a circuit on a computer and print out the actual layout of where to place the components because a schematic doesnt show where to place them in real life. I hope you know what I'm trying to...
  9. Steve_hi

    Timer with Beeper for Intravenous Drip

    Does any one have a schematic for some sort of timer that could recieve an input such as 17 then beep 17 times per minute. I would like to have something like this to assist in setting the drips for an intravenous it would be easier than trying to watch the second hand of a watch and count the...
  10. Steve_hi

    help!!!

    It is not the job of a student to explain a formula but to use a formula to solve a problem. In order to do this one must first understand the formula. He was not asking to have his homework done, but for an explanation of the formula or simply a website that would explain it. The world would be...
  11. Steve_hi

    help!!!

    here is something I dont know much about this stuff but take a look http://en.wikipedia.org/wiki/Electric_motor http://www.gizmology.net/motors.htm
  12. Steve_hi

    help!!!

    RIGDOCTOR If thats the best you can offer someoneone who is asking for help WHY BOTHER!
  13. Steve_hi

    Learning electronics via multimedia software

    Found a really good site to help beginners http://www.allaboutcircuits.com/vol_1/index.html http://www.kpsec.freeuk.com/index.htm
  14. Steve_hi

    Using a power supply salvaged from a DVD player

    Hi. I have a power supply from a DVD player which has 2 grounds, 5V+, 12V+, 12V- and another 5V+ and another pin for CN 1)  what is the cn pin for? 2) Can I tap into the 12V+ and 12V- and make a junction to have 9V + and 9V- what components will I need? 3) Can, and if so what should I do to...
  15. Steve_hi

    Capacitors

    I read that a capacitor should have a value of at least twice the input voltage does this mean that only the capacitance is important and the voltage could be any value as long as it is twice the input voltage? and with resistors does it matter if it's .25 watt or 5 watt as long as the...
  16. Steve_hi

    Where does a beginner begin

    Found a really good site to help beginners http://www.allaboutcircuits.com/vol_1/index.html Also http://www.kpsec.freeuk.com/index.htm
  17. Steve_hi

    PerkinElmer Cetus 480 Thermal Cycler

    I bought a thermal cycler from a lab auction for 10$ the company that made it wants $5,000.00 For a service manual YES $5,000.00 Any ideas as to how to get a copy or something from someone else what would you look for
  18. Steve_hi

    Microwave Transformer

    Could someone tell me what the output voltage & current of a transformer from a microwave would be and how to connect it Thank you
  19. Steve_hi

    Where does a beginner begin

    Thank you Ante I have downloaded the 6 volumes of tutorial as well as Xcircuit
  20. Steve_hi

    Where does a beginner begin

    Where does a beginner begin. I would imagine that I'm not the only one who has decided to take up electronics as a hobby so perhaps this topic will be of interest to other as well. I have spent most of my life as a machinist/mechaic operating my own business and now I'm taking nursing but I want...
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