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  • PallabD commented on saurabh.harsh's instructable Sound Reactive LEDs1 month ago
    Sound Reactive LEDs

    As a rooke in electronics I want to try yous schamatics but your circuit is a bit confusing asin the parts list tere is no diode an in diagram there is no switch.

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  • PallabD commented on assasinsareus's instructable Infinite RGB LED Cube1 month ago
    Infinite RGB LED Cube

    Super cool project

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  • PallabD commented on ajmboarding's instructable Sound reactive led box1 month ago
    Sound reactive led box

    No

    Hahaha comenting on a 3years old post, anyways try Tip122 its 100v & 5to8 A ,

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  • PallabD followed ajmboarding1 month ago
      • Sound reactive led box
      • altoids ever lasting led lights diy, jackolatern light
  • PallabD commented on caisa16's instructable how to make led's pulse on bass1 month ago
    how to make led's pulse on bass

    I have a serious question , actually I am trying to make this circuit, and by calculating the resistor watt I found its 144mW for 1k ohm and 14.4mW for 10k ohm, so what watt did you use or can I use 1/4watt for both, please answer. And also in the parts list there is a switch but in the circuit diagram its not there , where should I place it. Again Can I use TIP 122 instead of TIP31 as 122 collector current is 5A continous and 8A peak. And how can I send you PM. Thanks for reading such long post

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  • PallabD followed Surferdude and caisa161 month ago
      • Hermes' Caduceus
      • The ChromoDisk
      • Trash Landing
      • how to make led's pulse on bass
      • Hack an old pc power supply into a lab bench power supply
  • PallabD commented on caisa16's instructable how to make led's pulse on bass1 month ago
    how to make led's pulse on bass

    Excelllent project, and details are easy to undersyand. Thanksa lot for sharing, I was searching for something to secure. This is it.

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  • PallabD commented on 1manwolfpack's instructable Tip31 + LEDs glowing tube1 month ago
    Tip31 + LEDs glowing tube

    Why didnt u use any resistors

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  • PallabD followed elektrobot and saurabh.harsh1 month ago
      • Chapter 4, Parallel Circuits
      • Electronics for Absolute Beginners, Chapter 3
      • Electronics for Absolute Beginners, Chapter 2
      • Sound Reactive LEDs
  • Electronics for Absolute Beginners, Chapter 2

    Excelent knowledge , thanks a lot

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  • PallabD commented on saurabh.harsh's instructable Sound Reactive LEDs2 months ago
    Sound Reactive LEDs

    Need help,I haven' t use any resistors in my circuit, I used TIP31c & 5cm led cuted from a smd3528 strip red, as I thought that the led have resistors in them, supplu volt is 12v dc from ac to dc adaptor @1amp or from my psu in my pc.I have a few questions1. When I connect the circuit on psu nothing works more over my pc is conducting current.? Q2. What is the quantity of leds can I use as 5cm has 3 led and 1 resistor it drawing somewhere 0.24 watt and 0.02Amp (0.08*3) = 0.24/12v =0.02Amp.and the TIP31c can handel 3Amp ?Q3. Without using any resistor will I fry my audio device ( pc,Mobile)?.Q4. Can I connect additional 100ohm resistro per 1m strip and one 47k ohm resistor to the right prong of tip31c and another 4.7k Resistor at the left prong of the tip31c will it secure the curcui...see more »Need help,I haven' t use any resistors in my circuit, I used TIP31c & 5cm led cuted from a smd3528 strip red, as I thought that the led have resistors in them, supplu volt is 12v dc from ac to dc adaptor @1amp or from my psu in my pc.I have a few questions1. When I connect the circuit on psu nothing works more over my pc is conducting current.? Q2. What is the quantity of leds can I use as 5cm has 3 led and 1 resistor it drawing somewhere 0.24 watt and 0.02Amp (0.08*3) = 0.24/12v =0.02Amp.and the TIP31c can handel 3Amp ?Q3. Without using any resistor will I fry my audio device ( pc,Mobile)?.Q4. Can I connect additional 100ohm resistro per 1m strip and one 47k ohm resistor to the right prong of tip31c and another 4.7k Resistor at the left prong of the tip31c will it secure the curcuit? Sorry for such a long post plz reply I need help.

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  • PallabD commented on Orestis Mokas's instructable Music Reactive LEDs2 months ago
    Music Reactive LEDs

    Hi Orestis , in you pcb photo there are three connectors , what are they plz reply. Your curcuit seems to be the best one until soo far

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  • PallabD commented on saurabh.harsh's instructable Sound Reactive LEDs2 months ago
    Sound Reactive LEDs

    I have made with TIP31c , and cut the led strip (1 pice with 1R ,3led) , and connceted with12v dc , my question is how many led can I connect (wants to connect 1M strip )

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  • PallabD commented on Orestis Mokas's instructable Music Reactive LEDs2 months ago
    Music Reactive LEDs

    Very cool n interesting project , I am planing to do it as I already installed led strips on wall and on my gaming desk (self made, self painted) , now I want sound activation on my all led strips but want to use different channels such as ( left audio controlls under desk led strip ,1mtr. Right audio coltrolls leds behind desk, and the woofer controlls the wall led.) But the problem is I am not getting the TIP31 anywhere , so want to know what are the alternatives of the same. There will be 3 separate circuits. Sorry for sush long post, I just want to share my idea.

    Here are some pictures, soon I will change the blue leds with red

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