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  1. Delta Prime

    AC generation

    I wonder if this description and circuit rings a bell for you. A 555 timer configured as an astable multivibrator generates a square pulse depending on the values of the timing resistor and timing capacitor. In the second stage, there is a decade counter CD4017. This counts the square pulses...
  2. Delta Prime

    volt/amp meter how to connect

    That's cool I like cars. These little meters need to be isolated. meaning you can't power the meter, using the same power supply that you are measuring. I bought mine when they first came out. I threw it on the floor and crushed it into little pieces. Stupid meter, they do that on purpose. :mad:
  3. Delta Prime

    volt/amp meter how to connect

    Hurry up and send it back. So you don't have to pay for thinking. ;) Just kidding! Welcome to Maker Pro! :)
  4. Delta Prime

    AC generation

    I hate when that happens! What amplitude? What frequency do you want? What is the application?
  5. Delta Prime

    I have a dead Alinco DR-112

    https://www.alinco.com/pdffiles/
  6. Delta Prime

    Battery Charger with Load Sharing + Current Sensor

    I would find the datasheet of that module and post it along with your question? This way everyone would have a reference; there would be no room for interpretation of the explanation given. And I'm not telling you how to do it my way. It is best to provide any and all information up front! That...
  7. Delta Prime

    Battery Charger with Load Sharing + Current Sensor

    Sure if you want to blow up the LiPo battery that's how I would connect it. Don't play with fire. Off topic: Doesn't anyone go to school anymore? Learning on your own is one thing but doing it safely is another. If you'd like to learn how to make schematics then you're on your way but don't make...
  8. Delta Prime

    HC-05 stays in AT mode,

    Welcome to Maker Pro. I have no idea what you're talking about? Here is a snippet: Connecting to Vcc of HC-05 to a pin and try to power of power on this pin is not working because the when the pin is in HIGH level the voltage is 2.2V and the HC-05 Vcc must be 3.3V. This happend when the pin is...
  9. Delta Prime

    LED Wiring Help

    Four led filaments (any color) is 400mA. 3V×400mA=1200mW or 1. 2 Watts. If price for power supply is limited and you are able to locate a power supply . The minimum I would choose would be a 3-volt AC to DC converter(Wall Adapter ) rated at 2 Watts. That would be absolute minimum power supply...
  10. Delta Prime

    Comedy Thread

    Maybe, perhaps, brilliant,but cats can't sing! & I'm a genius. In your honor. Mr kiwi. I love my O'scope!!!
  11. Delta Prime

    LED Wiring Help

    Okay. So after seeing the video which I hate to do... Everything looks positive you want to use the same filament manufacturer. Specifications for different color filliments are exactly the same as the blue filament. Therefore,all you have to do is add up the current. So you say, "three or four...
  12. Delta Prime

    Comedy Thread

  13. Delta Prime

    Crock pot modification

    How very rude. There are rules. Puff,puff, pass! :rolleyes:
  14. Delta Prime

    How to make an opamp out of transistors?

    This is true. thank you for the correction. :)
  15. Delta Prime

    Sallen Key Low Pass Filter, bandpass filter

    This is true. Thank you for the correction. :)
  16. Delta Prime

    LED Wiring Help

    I'll address your blue filament. That filament has a (COB) which is an acronym for (Chip On Board). Power in Watts equals Voltage (V) multiplied by Current (I) in Amps . P= V × I. P =3 volts×100mA. =300mWatts or 3/10'ths of a Watt of Power. That COB will draw only 100 milliamps of current...
  17. Delta Prime

    Uneducated question

    Danger! Here be dragons... The only thing missing below is a triangle with a circle which is a (not gate)or inverter Also negative edge trigger for clock.
  18. Delta Prime

    Sallen Key Low Pass Filter, bandpass filter

    Lie to the hospital nurse not me... The reference voltage can be programmed from between 1.2V and 12V. Unless the voltage divider is being externally manipulated, RLO is connected to ground and the voltage reference is fed to the RHI input. These are the two ends of the voltage divider, which...
  19. Delta Prime

    Sallen Key Low Pass Filter, bandpass filter

    I don't expect you to understand it wasn't meant for you or the kindest person I've never ever met. A kitty cat with the heart of a lion. You must read it. I would just be repeating what has already been said. I would start with the diode magazine first it'll give you a shortcut for the reff...
  20. Delta Prime

    Sallen Key Low Pass Filter, bandpass filter

    You brought it up normally,this is private information and does not apply for acquiring information but in its proper contents of kindness and apathy, things I do not wish to lose if I'm fortunate enough to grow old. The links below are directly related to your query...
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