the little tube thingies in amplifiers? there are ones in TV's which are also vacuum tubes or similar as well but i dont think you can get them out to use in an amplifier circuit....
they're glued in there pretty good and where would i even find a decent tube amp or vacuum tube that i can observe because i REALLY want to actually look at it and see everything inside of it..
i am terribly horrible at reading drawings of diagrams of things like this.
the only one that i can do is the one with 4 diodes full sinewave rectifier thingy
all the other ones are a complete mystery to me
i cant even build a simple two transistor audio amplifer trust me i've tried
so i was wondering if i could try a vacuum tube amp instead because it makes a little more sense to me than the transistor amps
a really long time ago at one of my friends house there was a bunch of vacuum tubes lying on the ground but at the time i didn't know what they were and they looked pretty worn out and old possibly even blown
they were actually small in size and not that big really.. not bigger than the palm of my hand but close
if someone could show me an extremely detailed but easy to read and understand description and possibly a video of how a tube amp or vacuum tube works and what's inside of it and which wire is where and goes where i would be really happy
by the way i do N.O.T want a guitar amp i want an audio amp for signals from something like a headphone jack of a computer.
i'm not exactly sure if i want to try making an amplifier just yet... but i want to learn more about how vacuum tubes work or tube amps
(which one is it in terms of audio? 😵)
sorry for really long post i try to show the details of what i want to find out about tube amps or vacuum tubes
they're glued in there pretty good and where would i even find a decent tube amp or vacuum tube that i can observe because i REALLY want to actually look at it and see everything inside of it..
i am terribly horrible at reading drawings of diagrams of things like this.
the only one that i can do is the one with 4 diodes full sinewave rectifier thingy
all the other ones are a complete mystery to me
i cant even build a simple two transistor audio amplifer trust me i've tried
so i was wondering if i could try a vacuum tube amp instead because it makes a little more sense to me than the transistor amps
a really long time ago at one of my friends house there was a bunch of vacuum tubes lying on the ground but at the time i didn't know what they were and they looked pretty worn out and old possibly even blown
they were actually small in size and not that big really.. not bigger than the palm of my hand but close
if someone could show me an extremely detailed but easy to read and understand description and possibly a video of how a tube amp or vacuum tube works and what's inside of it and which wire is where and goes where i would be really happy
by the way i do N.O.T want a guitar amp i want an audio amp for signals from something like a headphone jack of a computer.
i'm not exactly sure if i want to try making an amplifier just yet... but i want to learn more about how vacuum tubes work or tube amps
(which one is it in terms of audio? 😵)
sorry for really long post i try to show the details of what i want to find out about tube amps or vacuum tubes
It's just a question of familiarity, IMO. Once you get more used to it you will gain confidence. We've all been where you're at.
hehe You're certainly not alone around here with that sentiment.
At its simplest, a tube has a negative cathode that emits electrons (usually by heating the cathode, called "thermionic emission") through the vacuum to the positive anode. A grid placed between the anode and cathode can be biased (ie a control voltage) to allow more or less of those electrons to complete the path.
After reading all the above, try this:-
Three Watt Economcal Stereophonic Amplifier
A very simple Audio Valve Amp. One Valve (plus one for the supply if you want to go for Valve PSU rather than Semiconductor) which does both pre and power amplifying in the one glass bottle.
With a little modification, you could use the PCL86 (if you have access to Valves from old TV's then this was a popular Audio Stage Valve in TV receivers) instead of the ECL86.
Cheers,
James.
Three Watt Economcal Stereophonic Amplifier
A very simple Audio Valve Amp. One Valve (plus one for the supply if you want to go for Valve PSU rather than Semiconductor) which does both pre and power amplifying in the one glass bottle.
With a little modification, you could use the PCL86 (if you have access to Valves from old TV's then this was a popular Audio Stage Valve in TV receivers) instead of the ECL86.
Cheers,
James.
I have no connection
Journey to the Center of a Tube - YouTube
Quite interesting..it has been posted before..
Regards
M. Gregg
Journey to the Center of a Tube - YouTube
Quite interesting..it has been posted before..
Regards
M. Gregg
percival007, The PCL86 would be a good idea.
As expensive and rare as the ECL86 is, I would not recommend using it.
It would be very easy to convert that circuit to say an ECL82/6BM8 or ECL84/6DX8 (worse distortion).
As expensive and rare as the ECL86 is, I would not recommend using it.
It would be very easy to convert that circuit to say an ECL82/6BM8 or ECL84/6DX8 (worse distortion).
wow those diagrams are a huge mess of scribbled uselessness to me i can't understand or even read a thing of what it says
i can barely manage a simple diagram of a few diodes and a capacitor
so that's just impossible for me 😵
i can barely manage a simple diagram of a few diodes and a capacitor
so that's just impossible for me 😵
Tubes are like valves, hey! many people call them valves. 🙂
Imagine a pipe with water flowing thru them. Imagine a valve in that pipe. The valve is normally open, but if you pull the lever, it closes. The flow stops. Ease up on the lever and flow begins again. Simple. The pipes are wires, the water electricity.
Do that lever trick real fast and you'll get a sort of vibration or oscillation going in the water flow. More, less, more, less, more, less. You could hook that up to a diaphragm (a speaker) and get some noise out of it.
That's how tubes work, and why they call them valves in the U.K.
Imagine a pipe with water flowing thru them. Imagine a valve in that pipe. The valve is normally open, but if you pull the lever, it closes. The flow stops. Ease up on the lever and flow begins again. Simple. The pipes are wires, the water electricity.
Do that lever trick real fast and you'll get a sort of vibration or oscillation going in the water flow. More, less, more, less, more, less. You could hook that up to a diaphragm (a speaker) and get some noise out of it.
That's how tubes work, and why they call them valves in the U.K.
You can't learn even the basics of a whole area of applied science in a few hours. Allow yourself more time and take things more slowly. Start from where you are. If that is batteries, bulbs and switches then that is where to start. If you already understand that then the next step is Ohm's Law. After that comes AC, capacitors etc.
If you're scientifically minded, this into to vacuum tubes is actually quite good:
Electronics 27
Of course, Morgan Jones' "Valve Amplifiers" would provide you with the basics as well. Mr. Jones delivers a bit more of an intuitive approach to vacuum tubes.
~Tom
Electronics 27
Of course, Morgan Jones' "Valve Amplifiers" would provide you with the basics as well. Mr. Jones delivers a bit more of an intuitive approach to vacuum tubes.
~Tom
ok.. tube valves or tube amps make ten times more sense to me than a transistor
transistors are nearly the same thing.... but they are just too simple and dont make much sense yo me because they're so simple..
plus i don't have an AC power source
even if i did.. i would never have the right voltage to power the tube amp no matter how powerful transformer i could ever have because i never even go NEAR a 120 voltage output source
i'd rather take a battery and use a speaker and hook it up a certain way to get a square or sawtooth like voltage change from 0 volts to the voltage of the battery..
transistors are nearly the same thing.... but they are just too simple and dont make much sense yo me because they're so simple..
plus i don't have an AC power source
even if i did.. i would never have the right voltage to power the tube amp no matter how powerful transformer i could ever have because i never even go NEAR a 120 voltage output source
i'd rather take a battery and use a speaker and hook it up a certain way to get a square or sawtooth like voltage change from 0 volts to the voltage of the battery..
If 120 V alarms you then you should not mess with valves. For transistors you can use a battery supply, or a packaged PSU so someone else has done the potentially dangerous bit.
Transistors are actually harder to understand than valves, but fortunately you don't have to understand them much in order to use them in simple circuits.
Transistors are actually harder to understand than valves, but fortunately you don't have to understand them much in order to use them in simple circuits.
Maybe starting with high voltages is too big a jump. Trust me it hurts! why not try some battery powered mini-tube projects first for safety? 😀
LMAO,
This has got to be a wind up...😀
If not then its the start of a new science and we can all prepare for the new time machine..😕😀
NB note the large sub woofer cone at the rear of the machine powering the dilithium crystals..also known as valves with electron accelerator unit that powers the banana relay to the Schrödinger's Cat duality of existance experiment..
Schrödinger's Cat - YouTube
Regards
M. Gregg
This has got to be a wind up...😀
If not then its the start of a new science and we can all prepare for the new time machine..😕😀
NB note the large sub woofer cone at the rear of the machine powering the dilithium crystals..also known as valves with electron accelerator unit that powers the banana relay to the Schrödinger's Cat duality of existance experiment..
Schrödinger's Cat - YouTube
Regards
M. Gregg
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