What do vacuum tubes (valves) do?

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Опубликовано:

23 окт 2016

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Комментарии : 58

@andrewhall8131 4 года назад

Finally someone that can explain things in English instead of Goblygooch !! Great job.

@kushagrgupta8654 4 года назад

Hmm gobblygooch.. Gonna use that somewhere..

@mauer594 2 года назад

it's not a great explanation and misrepresents a few key principles and features of vacuum tubes.

@ahmedahmed-tp6bo 7 дней назад

yes..good ... but hhhhhhhhhhhhh this the first time i see this word "Goblygooch " i am an arabic guy....a new word i learned from your grand mother i guess ....thank you

@KRAFTWERK2K6 2 года назад

So far the BEST and most relatable explanation of the function of a vaccum tube / valve. And it also visualizes why tubes don't just amplify like a transistor would but actually shape the audio signal in a smooth all-electron way. THIS HERE is exactly where all the audio magic happens that people like so much and what the tubes / valves do to the audio signal which then renders a very ear-pleasing sound (some would call it saturation). This right here is the reason why and how it happens.

@kenhammscousin4716 Год назад

Is it really? Fool, with this information I will build a weapon to destroy my enemies! Thank you

@ectobluntus Год назад

THANK YOU SO MUCH!!! I can't tell you how many 20+ minute videos I've watched that explained the tone characteristics, advantages/disadvantages vs solid state, types of tubes, etc but never explain how the tube itself works. This is exactly what I needed.

@MercyNoMore 2 года назад

It's nice to finally see an uncomplicated explanation of how tubes actually work.

@mf_rat 3 месяца назад

Can you send me the link to the uncomplicated explanation you watched?

@Paprika526 Год назад

What a fantastic explanation! Thank you for taking the time to create this video!

@concretel10n 9 месяцев назад

Beautifully explained - thank you

@VK4KK 3 года назад

Short yet all I needed to understand the principal for a tube. Thank you so much!

@kevinw6237 2 года назад

Brilliant explanation. Thank you so much

@khushisingh2163 3 года назад

Thanks man really helped a lots

@loverforever9030 5 лет назад

Wow finally get it! Very good job

@rappergenerico 3 года назад

Woah, this was a great explanation, thank you!

@curtvincent3728 2 года назад

Fantastic graphics and faucet analogy! Thank you!

@ProAudioEXP 2 года назад

Glad you liked it!

@whiskiikat 2 года назад

PERFECT Explanation :)

@jantadeuszgasiorowski6166 2 года назад

Finally answered all my simple-ass questions! Thank you!

@wesmatron 2 года назад

Genius shines in making things simple.

@shironmitchell 3 месяца назад

Thank you sir

@user-jl2wd1it8h Год назад

Great video!

@misterjack347 2 года назад

Plz do an analogy on Transistor as Amplifier too. This was explained very well.

@mauer594 2 года назад

It's perhaps notable that the heater merely controls the rate at which the cathode releases electrons - it is not typically part of the same circuit as the cathode/diode, which are the things that release and pick up the electrons.

@albertchiu655 Год назад

good tutorial ! 👍

@cyrillewis9606 Месяц назад

This setup is similar to a battery/resistor/led circuit no? The AC flowing through the grid ebbs and flows like when we turn a knob to regulate the flow of water in a faucet.

@Serjm87 5 месяцев назад

fascinating!

@MSI2k Год назад

Very nice

@PrincePrince-ov7nd 3 года назад

Sir which metal is use for anode and cathode

@bpg786 Год назад

Fantastic explanation of how a valve works, thank you. Just to start the conversation, assuming you are using the standard (Oxford Dictionary) definition of the word amplify, which is to increase in strength, then a valve dose exactly that doesn't it? It increases the strength of the signal in the vertical axis of the graph only leaving the horizontal axis largely unmodified. The vertical axis is amplitude, so by the most basic definition wouldn't that make it an amplifier?

@Earlvis 2 года назад

The heater does not provide electron flow to the plate. That happens at the cathode. The heater only encourages boiling off of electrons from the cathode.

@joeswampdawghenry 19 дней назад

Well done!

@jackalovski1 8 месяцев назад

I’m offended that this is the first video RU-vid recommended to me when I asked it how vacuum tube amplifiers work. I know you tried to explain it with the tap but it doesn’t output an alternating current because it doesn’t alternate and you even showed an AC waveform in the diagram with the zero line going through the middle of it when it should be at the very bottom of the sin wave.

@alexanderquilty5705 2 года назад

Is this using electron flow theory or conventional flow theory?

@mr.crighton9491 2 года назад

everyone's already said it : THANX!!!

@jaaqess2525 5 месяцев назад

How did anyone ever think to make the first tube?

@Chris-cf2kp 2 года назад

Makes me wonder then, how electrons passing through a grid, are filtered so preciseley to replicate the waveform onto a plate? And how does the plate transfer that signal accurately? Is it resonant? Electrical current? How does a varied wave across an area of a plate end up outputting just one value of a waveform instead of waves overlapping on the plate?

@kenhammscousin4716 Год назад

Ah, yes, I concur. Shallow and pedantic.

@joeswampdawghenry 19 дней назад

Osmosis

@ahmedhussain999 2 года назад

What is this utilised for?

@corinnarust 2 года назад

sorry if i'm wrong amplifying and can be a diode and triode (if there's the grid) electrons can't flow through the plate, only by the heater sorry for i've killed the english

@fredwilliams8571 2 года назад

The FILAMENT is the HEATER not the cathode.

@robertharrison1601 Год назад

Improvisational street harmonics

@chronobot2001 3 года назад

I thought the heater was literally a heater and the plates were cathodes, anodes and grids.

@mauer594 2 года назад

They are. The heater controls the amount of electrons that the cathode can release into suspension.

@davidseal8375 2 года назад

Input to grid is ac ....when the grid is negative electrons won't pass between cathode and anode....when the grid is positive it causes a increase in electron flow.....

@daksheshsharma7020 3 года назад

👍 from india

@mf_rat 3 месяца назад

Faucet analogy doesn't make any sense. Where is the water coming from to turn the faucet on and off?

@mistirion4929 2 года назад

So basically it's an amplifier. It takes a weak signal and amplifies it, if you want to call it like that or not. That said, this video was absolutely great because I've never quite understood what exactly they are used for or what they do on a basic level. Thank you so much

@mauer594 2 года назад

A Vacuum tube is a valve - it controls the rate of flow of electrons. The control grid may amplify it, but that's not the "function" of the tube itself.

@bpg786 Год назад

It increases the strength of the signal in the vertical axis, its an amplifier 👍

@andrewbeattieRAB 2 года назад

I’!! be damn.

@CFox.7 9 месяцев назад

So you clearly got a strong Australian accent but you pronounce tube as toob and say faucet in place of tap...okayyy

@ProAudioEXP 8 месяцев назад

Born and raised in Australia…lived in America the last 35 years. 😊

@DasAntiNaziBroetchen 3 года назад

You didn't even explain how the grid is removing electrons, as if that is completely obvious.

@aLittlePal Год назад

So you need to focus on the nature of the grid, and how the grid material react to your input ac power fluctuations, that is where the precise fidelity and resolution is made, the vacuum tube is just generating a strong constant signal, the grid which is connected to tour input is the real one who was doing the audio signal work