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  1. M

    How to reduce DC a bit without resistor or capacitor? Is there a simple solution

    You may use voltage regulator like LM317 as constant current sourse: http://www.electronics-lab.com/blog/?p=620
  2. M

    redirecting 3.5mm jack input

    You have a clever idea. I don't think it would be a pretty work. You need to trace the circuit where audio amplifier takes input. Then tap these wires out. No gaurantee that it will not damage the rf output.
  3. M

    Digital timer

    Please check following projects: http://www.electronics-lab.com/blog/?p=1266 http://www.electronics-lab.com/blog/?p=15749
  4. M

    12V to 19V for Laptop using ptn04050 5V/15V DC/DC converter

    Dear Friends, I have got to power my laptop from a 12V battery. I have a couple of ptn04050 dc/dc converter modules lying around. The converter operates at 5v and boosts it to -15V (adjustable). Could I use it to get 19V? My first  thought is dividing the Battery voltage to 6V using capacitor...
  5. M

    Final year project

    Its a nice idea. I have seen a demonstration here:http://www.josepino.com/science/electricity-from-piezoelectric
  6. M

    For fun - What is your degree?

    Well, I did my BSC Electronics last year from UET Lahore. Now I am doing my MS telecomm.
  7. M

    Transferring artwork on to a PCB

    Hello Shaiq, I have obtained good results by using the back paper atttached to stickers which u remove and throw away. It works absolutely fine.
  8. M

    Free sample chips!

    For CDsssss try Keil, Mathematica, Agilent Techs for Trial Versions
  9. M

    How can I cascade 4017s?

    Cascade ?: one way is to connect c_out to c_in of the next one or else if u want then to count in sequency, try May be use 1 master 4017 which gets 1/10th of system clock and its output used as display en-able for all other '17s which are all clocked from same (I say system) clock...
  10. M

    ATTENTION: Illegal content (ebook/magazines/software) will be deleted

    I am very sad too  :-[ :'( :-[ :-\ :'( :-[ No doubt, ER has been the one of most attractive features of the site. All the thanks and respect goes to Mr. Ante for such a good contribution to this part of site. I now request MIXOS to leave the contents as it is not reasonable to throw away ones...
  11. M

    50Hz when you touch Oscilloscope probe

    when i put cd4017 or cd4026 on breadboard (from a power supply) it gets self clocked at exact 50Hz. When operating from a battery it doesn't happen.
  12. M

    transformer problem

    220V/15kVA 1A  ? Figure isn't clear to me. is it 15Kilo Volt? A transfo with same kVA and Voltage rating shouldn't have diff current ratings.
  13. M

    Ball Firing Canon

    Aslam O Alaikum Shaiq, Why not use the centrifugal force of a body rotating in circle. Acutual mechanical may consist of a continuously rotationg arm. Rotating at one end with a hand on the second end. Hand grips the ball till ball's w is sufficiently high and then release the ball. Analogy of...
  14. M

    component

    Hello AG, You got my point. Hello Ante, I saw some other IC'pairs doing the same functionality. But I don't remeber there exact ID's
  15. M

    12 V DC to a 220V AC Inverter AMplfier Design

    I use Microsoft Paint program. I make straight lines with the Shift key down Very good trick AU. You are genious. From where u learned it. Thanks
  16. M

    im a begginer

    Hello Follow these links to build a dancing led circuit. http://www.technologystudent.com/elec1/dual1.htm http://www.interq.or.jp/japan/se-inoue/e_ckt7.htm
  17. M

    Fixed current power supply 100A DC

    Hello nametc3, To measure R in uOhm range KELVIN bridge is used. It uses meter movement (as your v-meter) to detect the test resistense arainst a variable known R. If u plan I-surce V-meter then even the connecting wires can add up to many more u-ohms. Its not practical approach at this...
  18. M

    component

    ICL7107? A lot of wiring mesh to do. Just compare 10 Vs 23 pins you have to feed.
  19. M

    How to Read, Write, Print and Email in GREEK (Many Uses!!!)

    But I am unable to find it  ::)
  20. M

    Thinking about getting into electronics??

    Hello! I am also an EE. I graduated 6 months back and immediately got a telecom job as  Management Trainee. I have great interest in electronics but can't do more than enjoying it as a hobby. I had never much of this kind of work in my country. But I never thought that you can't find a Design...
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