This is a great video and makes for a great project tutorial. However, for someone like me with no experience in soldering could you possible make a tutorial where you demonstrate how to sod these parts? Also do you have any advice for someone who would like to learn more about electronics, transistors and resistors where is a good place to start? thanks, great video, best I've seen so far.
For an absolute beginner, try one the 100 - in - 1 electronics projects kits from Radio Shack or such. Even as an adult, you'll learn a ton of important info on the basics. As far as soldering is concerned, practice, practice, practice.
5:45 uses the relationship between those two resistors. Can i use a potentiometer instead ? variable sensitivity ? if yes then what should its value be ? anything i wish ? thanx
Can someone explain the connection I got lost to be honest, I don’t understand why we are using 8 resistors while in the somatic shows 5 only + I don’t get the connection of the pins? Can you please explain that ?
would i need to use different resistors or something if i used different microphones? I have several that I have salvaged from damaged cell phones and this would be a cool project for some of them.
i bought such a sound-amplifier device to replace the one of all the battery-seller-trinkets on the market that i had bought under the illusion that they were made by honest manufacturers with the interests of people needing help to hear in mind. but what i bought to replace the battery-seller-trinket cannot be called a hearing aid. scraping of chairs and all the other interfering background noises make it impossible to hear what is being spoken.
Hi. I just tried do the simulation of your project in proteus and I replaced the electret mic with LDR and the output is LED(blue). I run the simulation and there is no output. how I want to know that this project is work as the simulation?
The leftmost capacitor is blocking the slower changes (lower frequencies) that you would normally read with an LDR. Replace this capacitor with a wire. Secondly, make sure the resistor you use with the LDR is the same resistance as the LDR (at your baseline brightness level). Thirdly, the op gain is likely way too high for LDR use. Instead of 2.7M, start with 2K and work your way up if you need more gain.
I would not use that part. Because the LM339 is a comparator. And so it will be optimized for that task. The comparator and op-amp might have the same schematic symbol. But they are constructed somewhat differentlly. In a pinch you could use op-amps as comparators. I have done so. In very very low frequency applications. And it was not ideal. Using comparators as analouge amplifiers is even less ideal again.
Keep the 1K resistor as the schematic shows, then wire the pot as a variable resistor (connect middle pin and one side together) and use that in place of the 2.2M. I would start with a 1M Pot, then add more resistance if you need further amplification.
You know, i'd take with a grain of salt where he says he can run it on 6V. Just about, but really really borderline. Make it 9V and your odds are a bit better. But on the whole, TL05x, TL07x and TL08x actually behave pretty much the same when gain is not too high. The last digit is number of amplifiers per IC, he got 4 here but only uses 2.
I got an older (1990s or so) hearing aid from someone who wanted to throw it out after loosing a family member. Me being interested in electronics of course got it. Actually quite impressed. Has 3 adjustments screws. What impresses me most is that with my normal hearing I can get super hearing with this. But also it has build in dynamics compression which works really fast so sudden loud noises are not a problem. Ordered some universal ear pieces on eBay.
You Did A Great Job , The sounds reminded me of the Hearing Aid i was wearing in past :) >>> and maybe in few days i will purchase a new one called (( Widex Super 440 Hearing Aid )) it's just AWESOME :) thanks for the video and for the nice work u done ... continue the great ideas u do man u rock :)
So now I'm searching for an identical one for both ears. Luckily it's not one of the new super customizable digital ones so another one same model and setting the setting screws identically should fit the bill. What not so impressive is the hiss random noise. While it's better than a kit made with TL08X op-amps also with dynamics compression (have though of switching opamps to something better) it's not as low as I would expect from such expensive electronics - even in somewhere in the 90s
Hi there. Are you there?? Can you help me please?? Look I may sound like a dummy not knowing electronic jargon but this important to me, il be building one of these, would luv an appreciate if you could answer my q's please... The tlo54 are in many electronics, there's 7 metal bits comin out each side on yours, I can find one same an use it?? I have many electric parts you can tell me which one specifically to get from
That is really good.I liked the idea and the voice that i heard from the mic at the end of the video was quite reasonable to be able to make it a really small tiny but a very nice project.Good Job.1 more thing the beer glass that u have there with "Jack Daniels" superbly printed on that makes this video much much awesome ;)
I built this circuit with an electric mic, but it didn't work as there was something wrong in this circuit. Please tell me what is the difference between an electric and condenser mic and tell me please where was the problem with this circuit? Thank you.
Good tutorial, however I would have added a full circuit schematic. Simply because with that I can go ahead and make it myself much quicker than watching the video then doing it.
I'll just use 2x1 opamp because this is for a project to make a cheap BTE HA almost behind my mum's back - she needs to let me use the solder iron though - it gets very hot.
Tried this with an LM324 and works also. Don't have earphones lying around so tried to hook it up to an LM386 with a speaker. Although it works and can hear a whisper through the speaker my circuit is very noisy.
You made useful device from scratch. Great job.
Cheers from Indonesia
Love the project and your detailed explanation. Very informative. Thank you for this great video.
This is a great video and makes for a great project tutorial. However, for someone like me with no experience in soldering could you possible make a tutorial where you demonstrate how to sod these parts? Also do you have any advice for someone who would like to learn more about electronics, transistors and resistors where is a good place to start? thanks, great video, best I've seen so far.
I'm nearly deaf as it is. A good project for me. I'm going to add a little volume nob so I don't kill my hearing completely.
For an absolute beginner, try one the 100 - in - 1 electronics projects kits from Radio Shack or such. Even as an adult, you'll learn a ton of important info on the basics. As far as soldering is concerned, practice, practice, practice.
God you made that super simple and explained it very very well... I'm going to subscribe 👍👍👍
Just what I was looking for. Now why does the hearing aid industry charge so much for simple hearing device?
5:45 uses the relationship between those two resistors. Can i use a potentiometer instead ? variable sensitivity ? if yes then what should its value be ? anything i wish ? thanx
Do you have schematic of this, i'm just beginning into electronic and you go to fast for me thank you for the project
Can someone explain the connection I got lost to be honest, I don’t understand why we are using 8 resistors while in the somatic shows 5 only + I don’t get the connection of the pins?
Can you please explain that ?
Nice and well explained. I just bought a quad 741. Mmmm. Maybe use 2 mics per channel and difference them for noise cancelation.
please i read somewhere about Programmers needed? How true is that?
Great Project
would i need to use different resistors or something if i used different microphones? I have several that I have salvaged from damaged cell phones and this would be a cool project for some of them.
connecting second op amp is little bit confusing can you provide full circuit diagram
nice job there i must try make one as I am deaf.
it would be cool to transfer higher/lower frequencies down/up so we could hear them
can you post a link for the conversion charts?
yo Bless this worked for me
Nice job...
wow, that is one nice project.
i got a question, can we put headphones on it?
and i wish you can send me the diagram,
thank you
Instead of buying a headphone jack and stuff can I just add a speaker to the circuit?
yes
r u using pins 4 and 11?????? ie +Vcc and -Vcc
We can use a LM741 op amp instead of the one your using?
How do you connect the 2nd microphone to the op amp?
how to connect the second mic???
i bought such a sound-amplifier device to replace the one of all the battery-seller-trinkets on the market that i had bought under the illusion that they were made by honest manufacturers with the interests of people needing help to hear in mind. but what i bought to replace the battery-seller-trinket cannot be called a hearing aid. scraping of chairs and all the other interfering background noises make it impossible to hear what is being spoken.
Can someone explain to me how he made it and how to make a small case for it. Please I just need it for our project.
I tried to connect the circuit but did not understand the connection of the pins
Hi. I just tried do the simulation of your project in proteus and I replaced the electret mic with LDR and the output is LED(blue). I run the simulation and there is no output. how I want to know that this project is work as the simulation?
Instead of ldr apply fluctuating pulse ( like ac). Hope it work.
The leftmost capacitor is blocking the slower changes (lower frequencies) that you would normally read with an LDR. Replace this capacitor with a wire. Secondly, make sure the resistor you use with the LDR is the same resistance as the LDR (at your baseline brightness level). Thirdly, the op gain is likely way too high for LDR use. Instead of 2.7M, start with 2K and work your way up if you need more gain.
dose it work with TL064 op amp ?
which op amp u r using ???????
How to check output in this video
How much will this cost?
Works
Is this works on LM339N?
I would not use that part. Because the LM339 is a comparator. And so it will be optimized for that task.
The comparator and op-amp might have the same schematic symbol. But they are constructed somewhat differentlly.
In a pinch you could use op-amps as comparators. I have done so. In very very low frequency applications. And it was not ideal.
Using comparators as analouge amplifiers is even less ideal again.
Plz...plz...send me one mini project....
plz...plz....send me one mini project ckt...plz.....
No NFB O/L Control !!.
send me circuit plz? :)
Send this to me..
It's not working bro
Keep the 1K resistor as the schematic shows, then wire the pot as a variable resistor (connect middle pin and one side together) and use that in place of the 2.2M. I would start with a 1M Pot, then add more resistance if you need further amplification.
PLEASE IC TL052 & TL054 SUBSTUTE
will it work with TL082 op amp???
You know, i'd take with a grain of salt where he says he can run it on 6V. Just about, but really really borderline. Make it 9V and your odds are a bit better.
But on the whole, TL05x, TL07x and TL08x actually behave pretty much the same when gain is not too high. The last digit is number of amplifiers per IC, he got 4 here but only uses 2.
Schematic does not show connections for 2nd 2.7m ohm resistor!
As a beginner I do not trust my instincts!!
Built this using the lm324, works pretty well. Added a small spst toggle switch, but can't figure out how to add a volume control.
I got an older (1990s or so) hearing aid from someone who wanted to throw it out after loosing a family member. Me being interested in electronics of course got it. Actually quite impressed. Has 3 adjustments screws. What impresses me most is that with my normal hearing I can get super hearing with this. But also it has build in dynamics compression which works really fast so sudden loud noises are not a problem. Ordered some universal ear pieces on eBay.
Tried this circuit using an LM358N but there is hardly any gain have to blow into the mics to hear anything
Might be a good idea to tell people to check their particular op-amps datasheet, so they don't fry it. Other than that, thanks for this.
Kinda sounded like my hearing aids, if I cranked them up... but even then, I couldn't hear some stuff you did... Ah well, I'm a deafie. :P
You Did A Great Job , The sounds reminded me of the Hearing Aid i was wearing in past :) >>> and maybe in few days i will purchase a new one called (( Widex Super 440 Hearing Aid )) it's just AWESOME :)
thanks for the video and for the nice work u done ... continue the great ideas u do man u rock :)
Could you give me the circuit diagram of this circuit?
Can u show in your circuit diagram , that how You connected the second mic
+Jameela Beevi It's the same for both ears. It's like a stero ear phone.
Where are you located?
It's noice ngiiiing or no
So now I'm searching for an identical one for both ears. Luckily it's not one of the new super customizable digital ones so another one same model and setting the setting screws identically should fit the bill. What not so impressive is the hiss random noise. While it's better than a kit made with TL08X op-amps also with dynamics compression (have though of switching opamps to something better) it's not as low as I would expect from such expensive electronics - even in somewhere in the 90s
Hi there.
Are you there??
Can you help me please??
Look I may sound like a dummy not knowing electronic jargon but this important to me, il be building one of these, would luv an appreciate if you could answer my q's please...
The tlo54 are in many electronics, there's 7 metal bits comin out each side on yours, I can find one same an use it??
I have many electric parts you can tell me which one specifically to get from
That is really good.I liked the idea and the voice that i heard from the mic at the end of the video was quite reasonable to be able to make it a really small tiny but a very nice project.Good Job.1 more thing the beer glass that u have there with "Jack Daniels" superbly printed on that makes this video much much awesome ;)
I built this circuit with an electric mic, but it didn't work as there was something wrong in this circuit. Please tell me what is the difference between an electric and condenser mic and tell me please where was the problem with this circuit? Thank you.
Good tutorial, however I would have added a full circuit schematic. Simply because with that I can go ahead and make it myself much quicker than watching the video then doing it.
Iv noticed those little blu things are colour coded so will find identical ones an solder em exactly as you have.... colour coded can't go wrong
I'll just use 2x1 opamp because this is for a project to make a cheap BTE HA almost behind my mum's back - she needs to let me use the solder iron though - it gets very hot.
If you replace the mic whit a wire that goes into the pc audio output will the sound increase by a few watts ?
Can you pls help me by giving a brief note on its working.
Go to 14:05 to see this device in action.
Huh? This is all over my head.
wow! how to connect the second mic?
Hi! can i use 9v for this?
very informative video. thanks.
Great work !!! Can you tell me how did you design the circuit like the reason for selection of components and their values ?!
You have to select the amplifier and the capacitors, resistors values are from the data sheet
does this work?
nice
Ι ΛΟΩΕ ΤΥΠΙΝΓ ΙΝ ΓΡΕΕΚ!
did you connect +vcc & -vcc
Op-amps can be configure to a single ended meaning just ground and the other +vcc
Your handwriting is sweet.
,😌🤣😂
will this work with 741 op amp?
Yes
Tried this with an LM324 and works also. Don't have earphones lying around so tried to hook it up to an LM386 with a speaker. Although it works and can hear a whisper through the speaker my circuit is very noisy.
he said his project works best with 4 aa, but that with 2 you get less amp and more distortion, maybe your chip need more juice than his :p
What chip he was used?
WELL, TOO NOISE IN MY OPINION. YOU MUST USE ANOTHER CHIP LIKE LM 324.
ANY WAY THANKS FOR YOUR TIME!!!
+Francisco Vaquero WHY YOU SHOUTING!!!
+Damian Reloaded because hes deaf ;o)