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  1. Mhz1

    Building a Variable Frequency Emmiter.. HOW HARD?

    Hello, I have the need to build a frquency Emmiter that will be Powerful enough to operate at about 100 feet distance, be able to have an adjustable frequency from about 1khz to 1Mghz...  I would like to be able to input the desired frequency some way.  Would I be better off buying such a gadget...
  2. Mhz1

    non-cassette answering machine

    Hello, IMO it will probably be a bit cheaper and less time to buy one for about 10 or 15 bucks, But if you're doing it as a project or hobby, I would suggest getting your hands on a Voice Recordable Chip from Radio Shack or other Electronic Outlet, and then put together a simple schematic that...
  3. Mhz1

    Correct way to Measure Power Supply Amperage

    Thanks Kevin and audioguru, very knowledgable answers with audioguru a bit easier for me to grasp, but none the less a very much thanks to your response Kevin, THANKS.
  4. Mhz1

    Correct way to Measure Power Supply Amperage

    Thanks for the reply Prat..  Yeah, I have a power supply that appears to be putting out the correct voltage, but I'm uncertain of if the Rated Amperage Output is correct...  It should be delivering 4 amps AC.  But I'm not sure if it is. The device that it is powering is acting kind of whack at...
  5. Mhz1

    Convert DC to AC Question

    Thanks Sasi for the Attempt to help, I believe it will be more difficult for me to Invert the DC to AC than buying or finding an AC source that will give me what I'm looking for...  thanks anyhow..
  6. Mhz1

    Convert DC to AC Question

    ok Sasi, thanks for the help... Forget about my initial Voltages.. How do I convert DC Voltage to AC Voltage?  Is there a Circuit That Show this type of Conversion?  I will figure out the amperage breakdown using resistors after I get the dc source converted to AC..  The reason I'm asking this...
  7. Mhz1

    Convert DC to AC Question

    60hz ... it will be plugged in a standard house outlet..
  8. Mhz1

    Correct way to Measure Power Supply Amperage

    Hello, Just wanted to know a good design (Circuit) to measure DC and AC Amperages without damaging the Power Supply being tested.  Is there a Particular or certain LOAD to use when measuring the current? I know you are not suppose to measure direct current from a supply source without a load...
  9. Mhz1

    Convert DC to AC Question

    Hello Everyone, I'm Trying to find a good way or Schematic, that will show how to convert 12v DC (5 amps) to 10v AC (4 amps)...  ??? Any solutions to this question will be much appreciated... Thanks
  10. Mhz1

    CMOS Question

    Hi, Yes, CMOS Comes in a variety of packages and functions for different purposes... CMOS type devices are known for there low power consuption for small devices etc. and are very sensitive to Static Electricity.. If you are somewhat familiar with TTL type components, then CMOS are somewhat...
  11. Mhz1

    Circuit To Count Fast Voltage Presence...

    Great References Ante, Now I will have to somehow convert the actual Module unstable voltages and current into a definable output for the Circuits You Referenced me to, since they are sensitive digital type circuits... But This IS GREAT! :) Thanks Alot Once Again... 8)
  12. Mhz1

    Circuit To Count Fast Voltage Presence...

    Yes Ante, that's correct.. Just something to verify the Pulstrain of the Module, and preferably a circuit that will hold the data to show me that there is a Pulse comming from the Module.
  13. Mhz1

    Circuit To Count Fast Voltage Presence...

    by the way Ante, or any other helper, the circuit doesn't have to be a counter, but anything that will allow me to capture the results without me looking at it. That is why I suggested a Counter.. Sometimes it's hard to monitor the tester while cranking the engine etc...
  14. Mhz1

    Circuit To Count Fast Voltage Presence...

    Hello Ante, once again.. :) .. Yes, the circuit tester I am interested in designing will be used for checking Pulse-Type Voltage from an Automotive Ignition Control Module.. I do understand that it's easier to go buy one, but I want to design My own... My knowledge is that The Voltage that...
  15. Mhz1

    Circuit To Count Fast Voltage Presence...

    Hi, I'm Interested In designing a circuit that is capable of reading (Counting) voltage presence for a dc ground reference that will be shuting off and on... I dont believe the lowest point of voltage reference will fall to zero, but anywhere from 100 millivolts to 12v. any Reference or...
  16. Mhz1

    Car Fuel Pump Amp Rating for Household Power Supply..

    Hi Dazza, and thanks for the Response... Yeah, I am creating a little Project where I can Test Injector Pressure for leaks and Possible Spray Patterns. I need to get my hands on a New Injector to see the actual Spray Pattern Under Various Pressures. I've Chosen Line Type Power Supply due to...
  17. Mhz1

    Car Fuel Pump Amp Rating for Household Power Supply..

    SUPER! :) YOU ARE VERY MUCH APPRECIATED SIR..THANKS ALOT! :D
  18. Mhz1

    Car Fuel Pump Amp Rating for Household Power Supply..

    :) :D Excellent Ante! .. I really Appreciate the Data... Don't want to sound like a super amature, but will I have to also look for a certain amperage on the Transformer's Output to achieve the 8 or more Amperage or just selecting the 120 - 150 Watt will be sufficient enough?
  19. Mhz1

    Car Fuel Pump Amp Rating for Household Power Supply..

    Thanks Alot Ante, and yes, Funny Line MP :) .... Yeah Ante, That is a Great Problem Solver for the Amperage Rating You have Given... Now I wonder will there be a problem trying to obtain a Continuous 8 to 10 Amp DC Current at 12v Using a Standard Wall Transformer? I looked at the LM196/LM396...
  20. Mhz1

    Car Fuel Pump Amp Rating for Household Power Supply..

    Hi, didn't know the best way to post my Subject without it being confusing, so this is what I'm attempting to do: I want to build a power supply that I can plug into a normal 120v AC wall outlet and supply the neccessary Voltage and Amperage to operate a standard 12v Automotive Fuel pump... I...
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