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  1. MP1

    DIY WBO2

    Yes, as you put it, you are just off in space somewhere talking to yourself. It willl not work as a replacement. Better to come up with the bucks for the original in this case. MP
  2. MP1

    Power supply for amps

    Hi frankwas, Welcome to Electronics-lab! The power amp in your link can run on 25 to 30 volts. This transformer only gives you 25 volts. That is why it is not maximum spec. Most amplifiers need a bipolar supply. Note that this one gives you 2 X 25 volts. This means it is a 50V center-tapped...
  3. MP1

    Flyback high voltage

    Always post a link to the project you are requesting information about. It makes it easier for others to take a quick look. MP
  4. MP1

    transformers

    Here are some links that might interest you jean-noel: http://geek.scorpiorising.ca/windingtransformers.html http://www.shinrock.com/Audio-Transformers/technicaldata.html http://www.allaboutcircuits.com/vol_2/chpt_9/5.html MP
  5. MP1

    5A regulated power supply

    You could also use a 7809 with resistors added like on a 317 for adjustment above the 9 volt mark since you do not need voltage lower than 9 VDC. MP
  6. MP1

    How many people here scrap old electronics?

    I had a small TV that I needed to get rid of. It was dead. The metal scrapper would not take it...the dump would not take it...so, I put it on the curb in front of my house with a sign that said "FREE", and it was gone the very next day.  8) Love those guys that like to tear things apart...
  7. MP1

    Audio Selector

    Are you sure the system is not de-activating the on-board sound card since you are using the address for the new sound card?  You might have a conflict even after you make the hardware. Not being a fan of Linux, my suggestion would be to uninstall Linux and....problem solved. MP
  8. MP1

    LED diaplay digital voltmeter

    Yes, surface mount can be used. I would not recommend the use of TO92 style regulators since the TO220 have a nice heat dissipation. MP
  9. MP1

    How to kill engine noise?

    Here is a site that might prove to be helpful to you. It deals with troubleshooting noise such as alternator noise in your audio circuits. Perhaps something in this article will jump out at you since you are really the only one who knows how you put this project together and where wires are...
  10. MP1

    Really stupid question

    ...then type CLS to get rid of all the other garbage. (Clear Screen) MP
  11. MP1

    capacitors

    yeah, but that really does not matter since answers to questions posted on this forum by one person could be the solution to another member's problem as well. MP
  12. MP1

    Single-ended CMOS Cascode OpAmp Design

    Homework assignment? MP
  13. MP1

    Google before posting

    this topic should be removed....no one should be told to google before posting. E-Lab is the ultimate source of information. MP
  14. MP1

    Feats of engineering?

    Kevin, Post a drawing. There could be a number of reasons. MP
  15. MP1

    USB Battery charger

    Maxim has an application note regarding this. I suggest that you go through it and make sure you are meeting all the requirements. http://www.maxim-ic.com/appnotes.cfm/appnote_number/3607 MP
  16. MP1

    Office bot

    Perhaps this link will help: http://www.wrighthobbies.net/examples/wirelessdata.htm MP
  17. MP1

    need the function generator circuit

    Jiro, Here is a pdf copy of a function generator kit that is commercially available. Have fun! MP Op_Amp_Function_Generator_ck102.pdf
  18. MP1

    Vocal Remover Circuit

    You can get a vocal remover patch for Winamp here:  http://www.analogx.com/contents/download/audio/vremover.htm It uses a digital algorithm instead of hardware. MP
  19. MP1

    How can I make a guitar fuzz effect

    No, I did not design the fuzz circuit Jesus posted. It is a standard that has been used for many years. It works and has worked well for many. I have a similar circuit inside the plate on an older guitar that I have from the late 60's. Again, there is nothing wrong with the design. There are...
  20. MP1

    capacitors

    By applying voltage to them. They don't do anything without the voltage...    8) MP
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