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  1. MP1

    Convert 0-30V 3A PSU to 5A or more

    I think that this is a different subject and should be discussed in it's own thread - not as an add-on to this thread... MP
  2. MP1

    DO NOT POST HERE UNLESS IT IS ABOUT A PROJECT IN OUR PROJECT SECTION

    I still see many posts each week that I have to move to the correct area. This area is NOT for discussion of Projects you are looking for. It is NOT a general discussion area of Projects you have found somewhere on the web. It IS an area to discuss the Projects that are found on our website...
  3. MP1

    A simple transistor switch for an LED light.

    Gogo, You are correct. Rason's method will get the job done sufficiently. Try it on the workbench and you will see. MP
  4. MP1

    Digital Audio Broadcasting (DAB)

    You are sending him away to Google? How rude! Paris, Welcome to Electronics-Lab. DAB is exactly what is says. It is a digital broadcast method for audio signals. I am sure you are looking for more regarding this than a definition, though. What information do you need, exactly. There are many...
  5. MP1

    16x1 LCDs

    Do you need 1 X 16? As mixos has published, 2X16 displays are fairly cheap.  Also 4x20 display prices are not bad. One thing that makes a big difference is which Continent you live on. You do not want to pay some of the high International shipping charges. Depending upon where you ship to, I...
  6. MP1

    etching time

    Regarding ante's mention of solution, I wanted to add into the discussion that for safety, some etchants should not be heated. Some can be heated, but not above a certain temperature. This also depends upon the etchant used. Ferric Chloride, Ammonium Persulfate, Muriatic Acid, homebrew mix? A...
  7. MP1

    FM Radio

    Thanks sarma, I think we are already past this. It is good to have you back. Hope all is well. MP
  8. MP1

    LED display voltmeter

    There is another thread in this section (Projects Q/A) that is much longer. Some members did not want to go through that long thread and started this one. Unfortunately, some of the same questions are being asked here. I highly recommend that you read through the pages of the other thread. There...
  9. MP1

    help for rpm measurement

    I have had no luck in finding a metric horse    ;D MP
  10. MP1

    how to make a guitar flanger

    MXR probably made the easiest one to copy. The SAD1024 might be a little hard to come by these days, but I know there are websites that carry this stuff. Let me know if you need help to find it. Here is the schematic by MXR. Click on the link to get a better picture. MP
  11. MP1

    motor driver L298 help

    Hi Rod, Glad to hear you are still here. As a new member, you might want to save the bag ante posted. You will need it from time to time...    ;D ;D It is true, however, that knowing your motor type is really needed to go on with a solution for you. MP
  12. MP1

    3-Axis Stepper Controller

    You can apply a higher voltage at the motors, connected to pins 2 and 7. Look at the data sheet I have attached for an example. MP UCN5804B.pdf
  13. MP1

    3-Axis Stepper Controller

    Is this using the schematic in our projects section or a different design? Please provide a link or post the schematic if it is not the one in our project section. We just need to know for sure which layout you are using. A 5 wire stepper is usually the same as a 6 wire stepper with only one...
  14. MP1

    Bass guitar effect pedal (need help)

    Since you are using an effect that is not even meant to be used with your instrument, you will need a little experimentation to get by with the least amount of changes. If you would like to experiment with the values, I would start with changing the value of C2 and C3 to 1 micro farad or even to...
  15. MP1

    Bass guitar effect pedal (need help)

    ...or it can also cause damage to the circuit. Uncontrolled or uncalculated overloading is actually harmful and might sound great for a few minutes.....then poof!  :'( LM386 is not an input stage. It is a power amp chip. It has no place in the input stages of effects or amplifiers. Connect a...
  16. MP1

    Parallel Port LED Dimmer.

    The data sheet is here: http://focus.ti.com/lit/ds/symlink/tlc5904.pdf The answers to your questions are in the datasheet. Dout is described somewhere around page 17. 1MHZ clock should be ok. It will just transfer data much slower. MP
  17. MP1

    Bass guitar effect pedal (need help)

    ReCoC, You don't want to use the LM386 output to go into the input of your BASS amp. The overload is not good for the input section of the amp. The LM386 also does not make a good distortion unit. It clips too much. Just increase the value of the input cap on your effect pedal so that it is...
  18. MP1

    3-Axis Stepper Controller

    Here is also a PIC to Unipolar design that uses darlingtons. Of course, if you are running your circuit from the parallel port of a PC, you can connect the parallel port at points RA0, RA1, etc and not use a PIC. Hope these are helpful to someone. The URL for the original site is at the bottom...
  19. MP1

    3-Axis Stepper Controller

    Here is a schematic that will allow you to use 4 wire bipolar or 6 wire unipolar in the same circuit. It is also an example of using 5 volts for the digital circuitry and a larger voltage for the stepper motor as I described above. MP Bi-Polar_Stepper_Driver_ck1406.pdf
  20. MP1

    3-Axis Stepper Controller

    Hi Nikolas, From the drawing it looks like he has a board. Not sure. Did you know that you can change bipolar to unipolar on the 8 wire motors easily? You just connect the two center wires. I have attached a basic drawing in case anyone is interested. MP
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