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  • PansiluJ commented on usbg3rd's instructable 10W R.M.S. Audio Amplifier1 month ago
    10W R.M.S. Audio Amplifier

    Yes i know but i think the ic is now i bougt new ill make it again in a breadboard.Thanks for quick reply. ?

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  • Power Supply (+-5vconst & 0-+-12v Variable)

    I made a psu with lm317 using the common sschematic.i used your coarse fine adj method as well.resistor values are 1k and 10k pot with 1k pot for fine adj.However the voltage cannot be adjusted using both pots.its always 10.6v with 12v vin.I replaced 220R resistor to 10k and 1k pot and that reduced the voltage.then used 5k pot instead of 10k and 1k pots.its worked but max voltage was 8.5v.so i removed 1k resistor(R2) and placed 470R resistor now againg its not adjustable.What should i do now.i cant imagine the problem.Any suggestions?And im not using fine tuning now.only 5k pot as R1 and 470R resistor as R2.

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  • PansiluJ commented on usbg3rd's instructable 10W R.M.S. Audio Amplifier1 month ago
    10W R.M.S. Audio Amplifier

    Hello.this is not related to this instructable.I made a psu with lm317 using the common sschematic.i used your coarse fine adj method as well.resistor values are 1k and 10k pot with 1k pot for fine adj.However the voltage cannot be adjusted using both pots.its always 10.6v with 12v vin.I replaced 220R resistor to 10k and 1k pot and that reduced the voltage.then used 5k pot instead of 10k and 1k pots.its worked but max voltage was 8.5v.so i removed 1k resistor(R2) and placed 470R resistor now againg its not adjustable.What should i do now.i cant imagine the problem.Any suggestions?And im not using fine tuning now.only 5k pot as R1 and 470R resistor as R2.

    View Instructable »
  • PansiluJ commented on usbg3rd's instructable 10W R.M.S. Audio amplifier9 months ago
    10W R.M.S. Audio amplifier

    This is one of the best amplifiers that i ever saw.thanks for posting this :).but i have a question can i connect a tone control circuit to this.if can,then how i connect that? i mean where i connect that? to the input of this amplifier(before amplify the input signal) or to the output(after amplify the signal)?i will use a 741 based tone control circuit.(In a another instructable)

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  • PansiluJ commented on GreatScottLab's instructable Build your own Crude FM Radio9 months ago
    Build your own Crude FM Radio

    BF199 and all other "BF"(NPN Si) transistors are not available in my country.what i can use that?any substitude?or can i use BC337,BC549 or BD135 transistor?if u can tell me that it would be awesome and this is awesome project indeed.:)

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  • PansiluJ commented on DIY Circuits's instructable Simple Stereo Amplifier - LM386 2x1W10 months ago
    Simple Stereo Amplifier - LM386 2x1W

    hey.can i use 12v power supply for this? ithink it must be possible becouse 7809 will regulate the volthage to 9v.

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  • PansiluJ commented on zabi_rauf's instructable Make a Simple Audio Amplifier11 months ago
    Make a Simple Audio Amplifier

    I think this is the best and easy to make AMP.and great guidance.however i need to know how many watts of power this generate.and what kind of speakers that can i use?(i meant watts and ohms)

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