Search results

  1. Electro132

    Amplitude and Frequency

    I'm deciding on building a resonator oscillator first then, since i can change the frequency, i'll add that to the square wave. but i'm curious to see whether the wine glass will break with triangle or sawtooth waves as well? I think if the waveform was to reach above 120 db (at volume...
  2. Electro132

    Amplitude and Frequency

    Well no insurance. But i know that the pitch of the resonating frequency can be changed, so the frequency can move fast or slow meaning that the wine glass can vibrate depending on the amplification and the pitch. Together i think it is possible to make the glass break with a fixed frequency...
  3. Electro132

    Amplitude and Frequency

    Just an add on, i think it would be best to be able to select specific frequencies from a signal than have a specific signal. Not sure, but i'd like to try out both designs if possible
  4. Electro132

    Amplitude and Frequency

    Ok well i'll clear some of these things up. First of all, the purpose for this is to make a wine glass resonate and break into pieces for my experiment. The resonator, as it says, only has one frequency it resonates on. So this means that when the wave comes out it won't be amplified at all...
  5. Electro132

    Amplitude and Frequency

    Links to read up on are: http://www.radio-electronics.com/info/data/crystals/quartz-crystals-resonator.php http://www.fpga4fun.com/oscillators.html
  6. Electro132

    Amplitude and Frequency

    Hi, Ok, so its been about 1 - 2 years i've been researching and have found what i was looking for. I need some help in designing and building it so here goes: I plan on building a project which allows me to change the amplitude and frequency of a waveform. This is then fed through an...
  7. Electro132

    Applying wave to voltages

    Thanks Dave. I'll look into it Cheers
  8. Electro132

    Applying wave to voltages

    ok cool, so is it possible that we can build a circuit which does an output of -70 mV together? My only concern is that the DC line starts from 0 v and not from - 70 mV unless there is already an existing -70 mV presently generated by the Earth that i can just tune into and restrict until i...
  9. Electro132

    Applying wave to voltages

    My mistake. It was the ICL 3038 component that does this. Well a science friend told me that if you connect a multimeter to the battery with switched leads (positive to negative and negative to positive) then you will get a minus displayed on the multimeter. This is due to the power coming...
  10. Electro132

    Constant Battery charger

    Ok, i admit that i was wrong as i went and tested it out.
  11. Electro132

    Constant Battery charger

    Yes at some point you are right. But you have forgotten that with AC the power, current and voltage are alot more than with DC. Therefore if DC is to be the input power source then it will be increased whilst being pushed through an AC transformer as the electrons are collected in the air and...
  12. Electro132

    Applying wave to voltages

    The IC i am using is a 555 timer which generates a sine wave Can you explain what you are referring to in your last question please? Sorry buddy but i already did that so it is possible. (You just switch them) Well its intended purpose is to be used as part of a sequence. Let's just...
  13. Electro132

    Applying wave to voltages

    Hi, I have this project in my mind where the power/voltage supply is 1.2 V which is turned into - 70 mV using resistors in the "M' ohm range. The problem i am having now is how to add it to the IC and combine it with the wave pattern. I know that a NAND will work with a 555 but wanted...
  14. Electro132

    Constant Battery charger

    You are Bob. I mistook the transformer for the darlington pair. So if transformers were in place would that mean it is possible to increase the voltage/power output?
  15. Electro132

    Need help with tuning cap

    HI, I have tried to google search for variable capacitor images that show the pin layout (input, common, output) but can't find any. Can anyone please help me? I have attached a pic and need to know what the pins stand for. Thanks
  16. Electro132

    Constant Battery charger

    Ok that is true. But there is a source of energy for this - the battery that is on the diagram labelled ' BAT '. The transistors amplify the current applied and then stores it as well as place it back into the battery.
  17. Electro132

    Constant Battery charger

    yes you guessed correct. :) it is a free energy device. Ok well the battery is the source where the positive electrons flow through and get amplified by a darlington pair and then gets some resistance to keep the current flowing within the limits of the electrolytic capacitors to which...
  18. Electro132

    Constant Battery charger

    Ok, sure. lol I'm building a battery storage circuit where it would store energy from the battery. I've attached a pic of my design so far. My concern for the moment is with the battery heating up and if anybody is asking why the circuit has a line connecting back to the battery it is...
  19. Electro132

    Constant Battery charger

    HI, I have this idea which involves a battery being placed with transistors and resistors. My goal is simple, the amount taken out is to be amplified and used on a 2nd circuit while also having the resistors in place to put the amount of battery lost back into the battery.
  20. Electro132

    Pulsated LD

    I found it online whilst i was searching for info about the duty cycle on google.
Top