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50W Amplifier on transistors

50W  Amplifier on transistors



Best PCB prototype ($2 for 10 boards): https://jlcpcb.com
Download archive http://www.kit-shop.org/zip/dorofeev.zip
Power amp class AB http://got.by/2k8l0y
Power amp class D http://got.by/2k8l6e
Transistor tester http://got.by/2k8lfq
TL071/081 http://got.by/2k8ljm
600pcs resistors http://got.by/2jhbvc
TIP41/42 http://got.by/2k8mcz
BD139/140 http://got.by/2k8mg3

My multimeters
http://got.by/2k8mjz
http://got.by/2k8mlx
http://got.by/2k8mv2

My power supply http://got.by/2k8myr
My oscilloscope http://got.by/2k8n0b

Facebook https://web.facebook.com/Kasyan-TV-139150916827430/

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Tags: transistors

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20 Comments

  1. Date: June 6, 2018 at 14:04
    Author: MrBrymstond

    Can I use a 140 watt toroidal transformer for using 2 amplifiers to make stereo or does each channel input need isolation? Also which value diodes should we use on the full bridge rectifier for 140 watt and there's no set voltage for capacitors?

  2. Date: June 6, 2018 at 14:25
    Author: Mai Mariarti

    You used to be a good channel. Now you just post stuff that no one will build.

  3. Date: June 6, 2018 at 14:32
    Author: PirateKitty

    No circuit analysis. Not Stereo. Odd power requirement. Not a class B, but a class AB.
    Also, why is every electronic channel YouTuber now a pimp for JLCPCB?
    That's just too much. If they are that good, how come you don't use them yourself? How come they don't make your PCBs for your videos for free?
    Not trying to be an ass, just pointing out areas that need attention.

  4. Date: June 6, 2018 at 17:56
    Author: Bharath Nani

    Hai, am a fan of your channel. Thanks for sharing many videos and they useful and interesting to learn.
    I saw your explanation of 3.7 lithium battery protection board.
    I request you, kindly can you make 12 volt and 6 volt SMF batteries protection board with available spare parts.
    Thanking you

  5. Date: June 10, 2018 at 06:07
    Author: Glpi lpi

    Despite the verbal hyperboli , it's still what it is . A cheap amp . Full of far eastern promise .

  6. Date: June 19, 2018 at 01:26
    Author: Michael Rinkle

    uhm, you can totally hear 0.1% THD, unless you use cheese speakers I guess. Also TIP42/41 are expensive and weak, for few monies more, step up to better power transistors, or show the how and maybe parallel outputing stage 3 of the each TIP42/41 for 180W 1.0%THD!! 😀 cheers and happinesses!!!!

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