DIY Tube Amp VS Transistor Amp! Which one sounds better?!



Altium Designer: https://altium.com/yt/greatscott!

Previous video: https://youtu.be/d58GzhXKKG8
Previous tube amp video: https://youtu.be/RoSIzgvEGtA
Class A transistor amp video: https://youtu.be/7Pv-j_R3YP4

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Twitter: https://twitter.com/GreatScottLab
Support me for more videos: https://www.patreon.com/GreatScott?ty=h

More information about my DIY tube amp can be found here: https://www.patreon.com/posts/54695080
Websites which were shown in the video:
https://www.thomann.de/gb/search_dir.html?sw=tube+amp&smcs=604f4b_1459
https://www.google.com/search?q=fender+champ+amp+schematic&sxsrf
https://www.jj-electronic.com/images/stories/product/preamplifying_tubes/pdf/ecc83s.pdf
https://www.jj-electronic.com/images/stories/product/power_tubes/pdf/6l6gc.pdf

In this video I will not only show you how to build a proper vacuum tube amplifier, but I will also directly compare it to a transistor amp. You will hear the audio quality difference between them and I will also show you the difference between them by using an FFT and also by creating a Bode plot. Along the way you will learn all about tube amplifiers which come with a proper tube output stage as well as a transformer. Let’s get started!

Thanks to Altium for sponsoring this video.

Music:
2011 Lookalike by Bartlebeats

0:00 I did injustice to tube amp lovers
1:15 Intro
1:54 Tube Theory (triode, pentode)
3:54 DIY Tube Amp schematic
5:51 Building the DIY Tube Amp
6:35 First Tube Amp audio test
7:45 Audio quality comparison
8:59 FFT & Bode plot comparison
9:34 Verdict

source

20 thoughts on “DIY Tube Amp VS Transistor Amp! Which one sounds better?!

  • August 15, 2021 at 5:26 pm
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    Quality is just choice of prefer what we like . I love tube due give vintage astistic but transistor do really great nowadays

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  • August 15, 2021 at 5:26 pm
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    a good idea instead of using the variac is to get some high ohm resistors instead, if everything is fine the voltage on the amp with be near full value and the amp will work at designed voltages, if there is a short there won't be high current due to the resistors

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  • August 15, 2021 at 5:26 pm
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    Hey GreatScott i hope ur doing good, Can u tell me how i can increase ampere of a solar whose Short_circuit current is 10.75amp and i have 5 more like this and i want to step up my power plz help me out with this probleam

    Reply
  • August 15, 2021 at 5:26 pm
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    I wonder how many of the tube amp fan boys also prefer vinyl records over CDs and other digital media, because of the clearer sound or some such.

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  • August 15, 2021 at 5:26 pm
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    from what ive heard/read, for regular listening it's hard to tell a difference between a high quality transistor amp and a high quality tube amp, but for guitarists, tubes have a softer clip than transistors so when you overdrive the tube preamp to get that classic guitar distortion you hear in rock in makes a better sounding distortion

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  • August 15, 2021 at 5:26 pm
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    You need to hear Conrad Johnson, vtl or Cary audio they out perform solid state in sound quality and output

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  • August 15, 2021 at 5:26 pm
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    The person who said transistor amplifiers were not analog made me lol

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  • August 15, 2021 at 5:26 pm
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    "tube amps add distortion to the sound signal" Yes. That is why we guitar players like them, audiophiles.

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  • August 15, 2021 at 5:26 pm
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    Hey GreatScott! Can you take a look at desulfator circuits for lead batteries for a DIY or buy episode? and maybe also test if they work as advertised or if it is just snake oil?

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  • August 15, 2021 at 5:26 pm
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    it might be my personal opinion, but if you're wasting money on tubes, use them for mains rectification as well…pure vacuum, no semiconductors ­čśë

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  • August 15, 2021 at 5:26 pm
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    Everyone speaking about tubes, but I'm thinking about that video intro but in SMD

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  • August 15, 2021 at 5:26 pm
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    Today all sound is digital. Recording with IC amp, and maybe with DSP, and than transforming to digital with other IC-s, editing with programs, and than convert this to analog with IC-s, and than an IC preamp to the jack, and only than you can use your preamp, and amp, or something.

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  • August 15, 2021 at 5:26 pm
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    well certainly making a real authentic and original tube design is more expensive and problematic what with the high voltage involved and difficult to source components and everything like that. so therefore i would say the actual electrical energy efficiency of the circuit would come in somewhere about a 3rd place below those other considerations. unless it was for a mobile application of course! then it would come 1st place. so there is my entirely different and pretty valid reason for not agreeing with the reason you stated for your decision here simply 'effeciency' is not compelling when to get a pretty loud enough sound only requires a very few watts of power to begin with isn't it? that seems relatively acceptable if you were for examply to power the electricity grid from renewable energies. which we MUST do anyways (bor we are all doomed).

    but i didn't come here to say only that. you see you neglected something else. this time it was not mentioning of a significant innovation in tube amps. this is from a patent that has recently expired. for a whole new class of 'bantam amps'. it is a modern alternative design for the output stage to replace the expensive and heavy output transformer actually with mosfets. this is not like previous hybrid designed which were different in their nature. no this is different. the only thing replaced is the output transformer. so it does help to reduce somewhat the cost and weight a bit. but still not change or compromise the original tube sound, forits desirable tube distortion sound character. it does not however avoid the necessity for high voltages so is not going to fully solve the significant disadvantages of tube amps as previously stated above. but it is however an improvement for mobile applications

    finally i want to say that tube circuits (not just amps, but effects circuits too). are now firmly in the realm of making music, not reproducing it. so your whole video the context only really applies to those audiophile vintage crowd. and this does not make tube amps useless whatsoever! however we can these days very well record and reproduce these analog domain circuits in digital realm with DSP. which then is certainly a great solution to pretty much all of the drawbacks of any real tube amp. and without having to compromise on the quality of the unique tube sound. it truly has gotten that good now. so no worries. but it is still kindda fun for some people out there to mess about with real tube circuits and vintage gear. especially for rare and unique equipment that has not already been faithfully captured into DSP this way. so the value of learning about the cuircuit is still far from worthless. and knowledge of an analogue circuit may also help lead to a better understanding for how to model those DSP in the digital domain. for example the guy who wrote the 'guitarix' free digital plugins in linux. and also those developers who wrote the commercial amplitube software too. Have a good day ­čÖé

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  • September 6, 2021 at 10:19 pm
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    Definitely, what a fantastic website and revealing posts, I will bookmark your site.Have an awsome day!

    Reply

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