For those complaining about power consumption/sound quality this is meant as a drop in device that does not require any modification to the csasette player. Also, the distortions are caused by overdriving the head inside the cassette by turning the BT volume up too high. It's better to set the BT at a volume that gives acceptable quality, and then use the volume control on the cassette player as if you were playing a normal cassette.
i bought a am/fm digital radio tape player. it didn't have a speaker, so i opened it, took the tape player parts out, and replaced them with a small speaker! sounds great!
Interesting idea, but do they make dynamo generators that small? And getting the right voltage to power 5v usb is also a pain in da butt, you may have to invent a complex gearbox for that.
La calidad del audio se satura porque la potencia de la señal que recibe el amplificador (reproductor de cassette) es muy alta, debe equilibrarse, bajar el volumen en el celular por máximo al 75% del total (recomiendo 50%) y el incremento del volumen lo brinda el reproductor de cassette... Excelente idea.!!!!!👏👏
You now need version 3 with stereo output for those with better tape players. They use to make a car cassette adapter with stereo head for cars stereos, this could be the blue tooth conversion version
Здесь просто ужас сколько недочётов, начиная от чрезмерной мощности подаваемой с блютуз модуля на магнитную головку, так же позиционирование между двумя головками( азимуты), умные протяжки понимающие скорость вращения тон вала и барабанов(зажевало или порвало ленту), не просто так он одел резинку на барабаны но этого не достаточно, малая ёмкость аккумулятора..... Короче есть готовые решения на али не только блютуз но и линейный вход, стоят ваабще не дорого
Awesome. I suggest a power plug from the player instead of the battery nonsense unless it's a mobile cassette you bring to places and use other players. It shouldn't be a problem to take 3-5 volts from somewhere inside the cassette player. A similar cassette (adapter) was once sold where we could connect a CD player like that. It was a great gift for one of my friends long ago.
Quite innovative alright, but, instead of passing through cassette head, the blue tooth receiver could be directly connected to the audio amplifier section of the same cassette player. This ensures better fidelity as the frequency response of the heads which are inductive (and are limited by the air gap in the head) limits the bandwidth. Also the motor and the mechanism are running consuming considerable power. Again, the battery inside the modified cassette is too small, requires frequent charging. Instead if it is directly connected to the amplifier, the power can be directly trapped from the amplifier. This makes it more simple, more efficient, and gives better sound.
I agree with u sir , by the way the motor running cause noise so your dezine is much better than this guy but I respect for this guy attempt because people are different thinking, in fact the purpose is modification of device to works such bluetooth as well. regards to this guy project. 🤘🏼
You can use this in a walkman!! Putting a Bluetooth adapter is nothing new. I can get one installed for 5$ including labor costs here in India. The cassette Bluetooth is so innovative.
Not the point. The purpose is to make it instantly functional with any cassette player. The destortion is from over driving the head in the cassette he made. If he adds a 1k ohm resistor up to maby 10 k ohm or maby a trim pot between black leed on head and board to attenuate the output of the Bluetooth that would fix it. Or also maby a 8 mfd capacitor th shunt some of the bass which seams to be part of the problem.
It shoul also still work, if the player is in pause mode (so you don't have to worry about the turning wheels). At least here, all the (mechanical) players I tested still pick up audio when paused. :)
Yes, but you could just plugged that bluetooth dongle into the line input of the tape recorder, press “record” button on the cassette recorder and job done, no soldering needed, and audio quality will be much better. The one in this video isn’t even stereo player - has only one speaker!
Поздравляю "изобретателя"!!! Эту конструкцию (только в виде радиоприёмника, встроенного в корпус аудиокассеты, звук с которого воспроизводится магнитофоном) печатали в журнале "Юный Техник" не в 1987 ли году.
У меня есть подобная кассета купил в Испании в китайском магазине за полтора евро и очень простая там ничего нет там только есть кабель который втыкается в наушники телефона и в радио автомобильное и всё. Можно слушать музыку можно говорить по телефону со старым кассетным радио.
Better use constant volume and regulate volume in player itself. Will help to avoid unnecessary noise and sound glitches. As upgrade make stereo playback with stereo head. And add external power through flat cable which will easy go through deck door.
Bluetooth tape upgrade nice Be good if cud send data to and from it so could store and record games for Atari on ya fone Even tho there's emulators for Android and PC
Это одно из никому не нужных изобретений. Вы придумайте, чтоб ваш морально устаревший кассетник работал на паровом двигателе, который надо топить углем.
This is a cool idea. Why is there so much distortion? Does the Bluetooth receiver not have enough output power to transfer to the cassette player with enough volume? Or is it just turned up too high. People complain you can just make a direct connection. They don't understand that your way is completely wireless and it can be used with any phone and cassette player. Also there is no wire hanging from the phone. How long does the battery last?
Actually the sound is distorted because the head in the cassette is overdriven .it needs a resistor to attenuate the output of the bt reciever so the transmiting head is not oversaturated an appropriate pare of trim pots or a couple of resistors one in series with each channel output or the trim pots with center tap to ground and other end to output to shunt some of the output. This would solve the problem. I actually like using the trim pots as this would alow you to adjust the output precisely and also controle balance. There are better ways to do this with coils and capacitors to get a perfect impedance match. But really that would be a bit of over engineering 🤔
The cassette head, by its nature, converts electromagnetic pulses into an audio signal (in play mode) and It converts the audio signal into electromagnetic pulses (in recording mode). The head used in the device converted the audio signal sent from the Bluetooth circuit into electromagnetic pulses.. The cassette head converted it into an audio signal
Nice idea but you will need a complex gearbox for that. Imagine you put this thing into an auto reverse deck in reverse playback mode a raw dynamo would reverse charging polarities and the cirquit is dead. I know that on some logic control decks you can never be sure which side it will attempt to play first. Something to keep in mind.
Wouldn't it be easier to use th microphone input on a portable stereo(cassette or not) and avoid dismantling anything? I know, where's the fun in that.
It doesn't work quite well. I make the same thing a few years ago, same bt receiver i crank up at max the car stereo and nothing come out or it was super quiet. The problem is that type of receiver. Those are line level output for any aux input works well (low impedance), but is not too powerfull for the high impedance of the magnetic head. The solution is not this receiver but those chinese neckband sport bt headphones, that includes a amplifier, and a larger battery.
@@Inventor_AW You may wanna invent a force forward gearbox then, because if you put the tape onto an Auto-reverse deck and it was set to reverse (side B) playback previously you may end up reversing polarities on the generator output. Poof goes your cirquit. Just keep that in mind, especially in Car stereos as most of them are auto reverse.
Не понятно зачем городить город?Можно выбросить все что есьть магнитофон и подключить эту цацку напрямую на вход усилителя,будет и качество,и меньше потребление.
допустим у кого-то в автомобиле стоит старая косетная магнитола, и не хочется колхозить нечего в мафоне, и аутентично все) достаточно неплохой выход из ситуации
Gute Idee für Sammler von alten Geräten, die auf diesem Weg auch die Funktionstüchtigkeit nachweisen können ohne altes Bandmaterial vorhalten zu müssen, zumal an diesem auch der Zahn der Zeit nagt. Sonst dürfte der Kreis von Hobbybastlern überschaubar sein, die eine solche Kopplung von Verstärkern an ihre mp3-Quellen für sinnvoll erachten und dafür Zeit und Geld investieren.
The music sounds oversaturated, which leads me to suspect that the problem is not with the bluetooth module or its quality. I would first try lowering the transmit level of the audio source (your phone), which should in turn decrease the sending voltage of the wires leading to the tape head. If that gets you lower levels of distortion, then the tape head just needs to be given the proper levels and you've found the issue. That said, a cheap bluetooth module COULD contribute to low music fidelity like you said, but shouldn't be the root cause. Next, check the tape head azimuth within the cassette shell and that it has full contact with the tape head in the Sony player. Lastly, you can try adding a variable resistor in-line from the bluetooth module to the tape head to vary the voltage feed levels leading to the tape head. Fitting it in the shell might be tricky, however this would allow you to adjust levels to where (for ease of use) you can set your phone volume to maximum and just tweak the resistor until you get the loudest volume without compromising fidelity. After doing some more research, here are my notes for you: ------------------------------------------------------------------------------------------------ www.edaboard.com/threads/magnetic-audio-head-tape.273834/ This is not exactly what your application is, but seemed to be related to issues you are running into. I recommend to pay attention to what was said by one of the moderators. The difference is that you are feeding line voltage via a bluetooth module into a tape head to be read by another tape head, whereas here they are attempting to wire in a line signal in place of a cassette head. [ 3. The audio on a tape has pre-emphasis - the frequency distribution is deliberately skewed. To overcome this, the amplifier applies the opposite skew. If you feed a different audio source into the head wires, the signal will be un-skewed when it doesn't need to be and the tone will sound wrong. ] The bluetooth module probably does not account for this! I also found this: www.jrfmagnetics.com/Nortronics_pro/nortronics_silver/Nortronics_silver_catalog.pdf On page 3 (printed on the actual page, not the PDF page number), you can see the signal loss diagram for a tape running at 1 7/8 IPS / 4.76 cm/s (normal for cassette players). Page 10 will help with alignment and shows different head types. Just my thoughts, nice video :) Good luck and have fun ;)
