how to make radio AM | AM Radio Electronic DIY Kit

how to make radio AM | AM Radio Electronic DIY Kit | Assembly & RUN

Рет қаралды 1,873,725

inventor KR

Күн бұрын

Пікірлер: 272

@mading789 Жыл бұрын

清楚的看到电路图是简体中文的，老古董了，上小学的时候就喜欢自己组装收音机，现在是老年人了。买来一大堆电子元器件开始焊接，安装调试好后听到喇叭发出的声音就会觉得满满的成就感。😊😊😊

@Bartok_J Жыл бұрын

One day, I'll see a video showing the correct way to align one of these Chinese radio kits. Goodness knows what all that fiddling with the slugs from about 10 minutes onwards was for, other than to misalign transformers that probably were best left alone. A signal generator is useful but not necessary as all alignment can be done on a "weak but stable" off-air signal. I've built several of these kits, including this particular model (and they've all worked well). ♥ Every Chinese kit I've built came with pre-aligned IF transformers. They were almost spot-on, and only needed a slight tweak when the set was up and running. If you've built the kit correctly, it should be receiving at least some signals without further alignment. If it doesn't, then check the wiring, look for solder bridges and dry joints, and check the circuit voltages before you go adjusting anything. The general rule: adjust coils at the low frequency end, and capacitors at the high. The trimmer capacitors are those little screws on the back of the main tuning capacitor. When the set is receiving signals, it's necessary to align the front end to obtain optimum sensitivity over the whole range. Tune the radio to a signal near the bottom of the band. Then slide the coil back and fourth on the ferrite rod to obtain best results. Then you do the same with a signal at the top end of the band: only, this time, the adjuster will be one of the trimmers on the back of the main tuning capacitor. One adjusts sensitivity, and that's the one to adjust. Then repeat the coil adjustment and, when no further improvement is obtained, secure the coil on the ferrite with a little wax or glue. Final step is to adjust dial calibration. Again, coil at the low end, capacitor at the top. This time, you need to adjust the oscillator coil (the can with the red slug) so that the dial markings are correct for a station of known frequency at the low end. Then repeat the procedure for a station at the top end, only this time, adjust the OTHER trimmer on the main tuning capacitor. Repeat a few times until calibration is correct (as close as it can be on a simple dial like these). THEN you can try a slight tweak to the IF transformers, though that probably won't make much difference. Happy listening! ☺♥

@jeromekaidor7254 3 ай бұрын

We made two of these. A six-transistor one and a seven-transistor one. I guided my 10 year old son through it. He learned how to solder. The instructions were in Chinese... I had to learn the Chinese character for the color white - to figure out where to put in the IF cans. Luckily there was a Rosetta stone: a table of resistor color codes.

@Bartok_J 3 ай бұрын

@@jeromekaidor7254 That's how I did it! But that was before Google translate could do images - now you can just scan the instructions and Google translate should (hopefully!) give a reasonable translation. I've done a couple of the six and seven transistor ones, and one in a similar case that used an MK484 / TA7642 IC rather than a superhet circuit.

@Петар-515 8 ай бұрын

Isti tranzistor sam imao u vojsci,samo sam u umesto malih stavio dve brodske baterije bile su ogromne kao limenka pola litra jedna a 1,5 volti.Sta je imala sve Jna ex Yugoslavia❤

@michaelkotejsky8538 3 ай бұрын

наверняка банка 1.2в никель-кадмиевая (размера 18650) от 10НКГЦ-1.5.. главное не перезарядить - они весело взрывались от перезаряда (в 90-х на заводе пугали дежурных в ночную смену, чтоб не спали:3)...в аппаратуре разрывали 30-м килогармаовый алюминевый корпус шифратора в бункере где-то глубоко...сейчас их заменили NiMH, ему не страшен перезаряд, и банки АА размера внутри...

@joaojuvencio4802 Жыл бұрын

Já montei um rádio quando estudei no Instituto Universal Brasileiro Curso de Eletrônica, isto nos anos oitenta, passei muito tempo estudando pra poder ir recebendo as peças para concluir a montagem. Tudo isso por correspondência. Foi legal!

@Carlos___ 6 ай бұрын

O que é essa peça laranja q aparece em 1:00 ?

@joaojuvencio4802 6 ай бұрын

@@Carlos___essa peça é a que aumenta e diminue o volume do rádio.

@markospaulo6283 5 ай бұрын

Vendo esse radio me deu nostaugia da epoca q os radios estavam no auge, eu era criança 😅

@Shimaneko227 8 ай бұрын

このAMラジオキット、中華製じゃないか😱 本格的な計測機器を用いて調整し、しっかり受信できていましたね。周波数帯が日本のAMラジオと同一みたいです。

@jj74qformerlyjailbreak3 Жыл бұрын

United States, Ohio to be specific. I doubt I’ll win the contest but it wouldn’t stop me from learning great tips and tricks as I always do from your channel. You are an inspiration for many. I assure you. God Bless and keep up the great work.

@MAHAKALBAJARANGBALI Жыл бұрын

I have also repaired such radios and I used to love listening to songs, even now I listen to radios from mobile apps.❤

@janetwinslow2039 Жыл бұрын

As other posts have said, you're just twiddling stuff! The proper way to do it: Set the IFs to 455 kHz (or whatever they are.) If you can't adjust them with a 455 kHz source, leave them alone and hope they are adjusted properly already. Go the HF end of MW and adjust the trimmer slot on the variable cap that tunes the stations. There are 2 trimmers, use the one that tunes stations and adjust it to bring a station on the correct frequency on the HF end of the dial. Tune to LF end and adjust the red core on a station to bring it to the right place. Back to HF end and repeat HF procedure. Once calibration is correct adjust sensitivity by peaking signal strength on LF end by sliding coil on ferrite rod, and on HF end by adjusting the other trimmer capacitor on the main tuning cap.

@RI-ns8wz 5 ай бұрын

I concur 100% with that. I am from Argentina, and before 1978's football world championship, radios were so expensive that I bought a lot of kits and put them together, to sell. I had experience with valve radios too, and I can tell with perhaps 98% of certainty that the IF coils were always tuned right out of the factory.

@jimmyjudha8424 5 ай бұрын

@@RI-ns8wzyou are the legends. I wonder how many IF stage radio have back then.

@jimmyjudha8424 5 ай бұрын

@@RI-ns8wzyou are the legends. I wonder how many IF stage radio have back then.

@minhtranquoc6679 3 ай бұрын

Giải tần âm thanh của đài này chắc công cao vì cóng Am chỉ thế.

@nationalelectronicssrilanka 5 ай бұрын

Not to brag or anything, but I cAmazing stunt. His daughter has the best manners. David your best performance is you raising a fine human being. All stunts you do are impressive. Following you for a long time now. The Best.hanged the lightbulb in my hallway while standing on a kitchen chair last week.

@Marc-r8x 7 ай бұрын

Todo mundo 🌍🌎 critica y destruye, pero nadie enseña como hacerlo, buen trabajo 😊😊😊😊😊

@fiddlyphuk6414 7 ай бұрын

When I was young, we had one weak AM rock and roll station (5000 Watts and 120 miles distant) that I always listened to and one local AM station that always came in very strong. I really only listened to those two stations. Had I known then, I would have just tuned the radio circuitry for the best sensitivity on the weak station with the IFs tuned to 455KHZ and left it at that. Would have also incorporated a tuned long wire outside antenna to inject more signal into the radio's front end, which is easy to do. Just make sure the outside antenna is lightning protected- I've seen many old radios that used outside antennas exclusively for reception with antenna coils burnt open from the antenna not being protected.

@KimTzujie 7 ай бұрын

Unfortunately nowadays it is very rare to hear the radio, Unfortunately nowadays it is very rare to hear the radio, Unfortunately nowadays it is very rare to hear the radio, Moreover, AM signals. But this video tutorial is very good and helpful for beginners who are learning

@yoayo 3 ай бұрын

Cara merakit yang sangat bagus, didukung peralatan yang lengkap,, tahun 1990 saya merakit radio MW SW SUPER HETERODYNE...Merakit mengandalkan solder dan AVO METER ,,, Bongkar pasang bagian trafo Oscilator merk SUMIDA SIA

@YTUser-4967 3 ай бұрын

Bagian PA pakai trafo OT240 ya?

@yoayo 3 ай бұрын

@@YTUser-4967 Seingatku pakai trafo modulasi IT191 & OT240

@vadukraine Ай бұрын

Я тоже в детстве собирал приемник, вернее мне собирал одноклассник моего брата))

@dedehermawan1698 Жыл бұрын

Project ini seolah mengulang kembali kenangan masa lalu..

@andreastriwinarto4422 7 ай бұрын

Sudah berhasil merakitnya pak?

@valyokolev7841 Жыл бұрын

Professionally , it is unacceptable to tune resonant oscillating circuits , regardless of whether they are intermediate frequency or heterodyne with a screwdriver , it must be made of non-magnetic material ! Greetings from Bulgaria !

@secsemiconductor Жыл бұрын

Perfect

@shindvs Жыл бұрын

Correct

@felixmotanul5242 Жыл бұрын

Please look carefully. The screwdriver is a plastic one. Alternatively, use your glasses.

@tonywright8294 Жыл бұрын

Well said .

@ArielTulidRemix 11 ай бұрын

Kindly wear your glasses sir because as what i see he uses a plastic screw driver...

@ВасилийТёркин-г3м 10 ай бұрын

Ceramic IF filters are for weaklings. And here is real superheterodyne hardcore! The dream of every true radio amateur.🤩😍🤗

@__Lawyer__84 5 ай бұрын

Молодец продолжай, скоро понимаешь чисто звучащие радио.. Но мой тебе совет подключи к спутнику.

@Dark-eis Жыл бұрын

Я думал радио петь песни будет, но работа хорошая, радио топ 👍

@michaelkotejsky8538 3 ай бұрын

покупал такой на алихе голубенький, лет пять назад...собрал, включил - он работает....ничего не крутил, не подбирал токи каскадов (хотя мерил - они с этими номиналами резисторов не в режиме) - НО РАБОТАЕТ...катушки не крутил - самые громкие станции укладываються в крутилку КПЕ и мне норм....

@adeyemijames1582 9 ай бұрын

I like the background musical tune. It's very cool.

@mochamadharso6545 Жыл бұрын

Terima kasih buat lembaga pendidikan kejuruan Kartini. Di jln Muwardi Grogol jkrtbrt .barokah belajar selama 1 th bisa punya ketrampilan buat bekal sampai saat ini

@saptobudiyono2303 Жыл бұрын

😊net pernah radio am persis kayak di video tsb,apa msih ada PCB+komponen2 tsb net pengen merakit lagi,kalo ada net mau beli+free ongkir 😮

@gilhermedemelo9550 6 ай бұрын

Eu já tive um rádio desses 😊.

@gerryroberts662 9 ай бұрын

Wow that was built quickly.. neat..

@KHAIRULANWAR-z2d 11 ай бұрын

Kesukaan saya waktu kecil saya sering membongkar radio dan melihat isinya...

@yellaiahvanumula1305 Жыл бұрын

Super bro next FM radio board fitting please

@roshanali4486 Жыл бұрын

Printed cricket best for beginners thanking you very much brother

@tecnicoenlavadoras6531 8 ай бұрын

Esto me recuerda que debo reparar varias radios antiguas de A.M.,saludos.-

@radhe-krishna14 7 ай бұрын

I love it works and want to learn ❤❤❤

@JoseManuel-of9xy 11 ай бұрын

És um grande artista parabéns pelo seu trabalho

@nanangbudihermawan2598 7 ай бұрын

Good job mr

@lkzone8981 6 ай бұрын

Good from Bangladesh ❤

@planker 11 ай бұрын

Excellent. You have given me the confidence to get started on my kit. I am hoping the test points on final check will get me close I don't have a signal gen. You have been a big help. Subscribed.

@UTintHo-le1yw 6 ай бұрын

အော်စီလေတာဘူးအနီရောင်နှင့်IFဘူးအဝါ အဖြူ အနက်ဘူးအင်ပို့အောက်ပို့ပါသောတလိုင်းဆွဲရေဒီယို။

@mdlitonkazi746 2 ай бұрын

রেডিও রিপেয়ার দেখে অনেক ভালো লাগলোন৯০ দশকে রিপেয়ার করতাম আমিও

@MichaelBoulewarejr-q7y 7 ай бұрын

Good job to you 💯💯💯💯💯💯

@ranbirsingh6641 6 ай бұрын

In India also, I personally feel that we dont have AM, MW and SW ransmission.

@inventorkr1 6 ай бұрын

These are international radio stations. You can receive these stations in all countries

@nikhilatyoutube 3 ай бұрын

But we do,

@hipihei Ай бұрын

Yes You do! 😊 I've been listening sw stations from India in Finland! (i have a hobby of dx-radio listening) 👍 ..but it needs better radio and antenna than this!😅

@topikhodiri9587 Жыл бұрын

Kerja bagus. Saya suka radio analog...

@ВиталийПаутов-ч4ф Жыл бұрын

Да уж. Всегда мечтал сделать радио на средних волнах, чтобы слушать китайцев.

@ВасилийТёркин-г3м 10 ай бұрын

А гдеже твои станцыи типа "Маяк" и всё такое?

@user-y6ancif86b 6 ай бұрын

@@ВасилийТёркин-г3мпо проводам вещают.

@MehmetŞentürk-q3i Жыл бұрын

Devre güzel, bütün eski radyolarda bu devrenin bi benzeri var, fakat bu kadar iyi yakalayamıyorlar.

@waleedantar4991 9 ай бұрын

I love the AM radio, but to make it is only one issue : how can I get the variable capacitor, IF, long coil and small transformers ?

@inventorkr1 8 ай бұрын

It can be found in scrap or purchased from Ali Express or eBay

@shindvs Жыл бұрын

I use to make transistor during 1978. Famous brand in India named Jerking

@Ciencia_Increible Ай бұрын

Buen trabajo! Excelente 👌🏻

@rickybelaongtv.3994 Жыл бұрын

New supporter friend,

@60pluscrazy Жыл бұрын

Nostalgic ❤❤

@nawazishhussain2431 7 ай бұрын

Beautiful video

@dz-abouttechnique1849 6 ай бұрын

Nice radio! 👍

@claudiomartinez2264 Жыл бұрын

Lamentablemente , ya no hay emisoras am , por lo menos aqui en chile...años atras , la radio am hacía furor. Hoy en dia, las pocas que quedan , son utilizadas por grupos evangélicos...se extraña aquella época...

@Stan0708 Жыл бұрын

O mesmo ocorre no Brasil , as emissoras de AM migraram para FM. As emissoras que ficaram no AM estão com programação evangélica.

@locutor-todotipodevoces 10 ай бұрын

Todo para decir "chile". A nadie le importa tu país.

@Brujo-Gotico666 2 ай бұрын

@@claudiomartinez2264 si yo extraño la AM me resultó muy buena cuando yo escuchaba la mano peluda por allí 😔

@vicenteeustaquilinodesouza9379 Жыл бұрын

POSSUI VÁRIOS RADINHOS DESTES LANÇAMENTO DA SHARP NA COPA DE 1970. OS TRANSISTORES NA ÉPOCA ERAM DE GERMÂNIO ENCAPSULAMENTO DE ALUMÍNIO

@agustjen7149 Жыл бұрын

setelah semua selesai dirakit seharusnya ada penjelasan secara tehnik tahap 1 yg hrs disetel yg mana dulu sampai tahap akhir tidak bisa hanya secara visual saja utk content 2 kedepannya saya rasa bisa dibuatkan vidio 2 seperti itu jadi lebih sempurna 👍👍👍👍👍

@geraldocorsini4436 Жыл бұрын

Ja montei no anos 80 e gostaria de me divertir novamente. Onde conseguir o kit ?

@justicesiphamandla8141 3 ай бұрын

I know this project its very easy as long is coming together in the box or plastic bag

@zin55539 Ай бұрын

bạn ơi hưỡng dẫn làm máy dò kim loại đi

@KHAIRULANWAR-z2d 11 ай бұрын

Halo bos.bagai mana cara membuat relay sederhana dan saya suka...

@MohammadZarib 9 ай бұрын

nice but i want PCB radio world resiver AM FM And Sw bands along with Tv band

@ravidrm0729 Жыл бұрын

Love from srilanka

@4games2gamers 27 күн бұрын

good work.

@saklihazinelerokancevik8535 Жыл бұрын

Hello, it works very well, please help me. I want to use the device between 5 and 50 Hz in the FM band, how can I adjust it?

@Predator-w3l Жыл бұрын

А что в Франции уже не делают свои приемники? АлиЭкспресс рулит?

@md.shariarkabir7350 7 ай бұрын

My father's old Radio 😢❤

@Cutting_Fruits99 10 ай бұрын

Good idea 👍💡

@rimsonsitohangchannel5607 Жыл бұрын

It's hard to find AM radio stations in my town.

@RakibKhan-h2k 7 ай бұрын

Well done 💯

@TENETELOS1986 8 ай бұрын

Excelente projeto.

@hamdifouzai4713 6 ай бұрын

j'ai vu ce kit sur Aliexpress pour 3€×frais de port compris

@BansilalGupta-pz7xm Ай бұрын

Nice bro 🎉

@Yran-io1bi 9 ай бұрын

Exente trabajo❤

@MultiKomentator 8 ай бұрын

Właśnie kupiłem i czeka zestaw na złożenie. Zamierzam zrobić tam modyfikacje, żeby radio było energooszczędne 3mA max na minimum głośności i odbiór krajowej radiostacji na falach długich (LW).

@inventorkr1 8 ай бұрын

Gratulacje, proszę podzielić się wynikami później

@marcosoliveirasantos3243 Жыл бұрын

Gosto desses kits. ótima montagem!

@gardening5164 Жыл бұрын

Input and output transformers and IF transformers for frequency alignments in olden days.

@cosmosilva3614 Жыл бұрын

Consertei estes tipos de rádios nos anos 70 e 80, como conseguir estes kits para montagem?

@Stan0708 Жыл бұрын

Aliexpress ... Kit diy AM radio.

@BrandonMosquera-v3o 7 ай бұрын

Esto no es inteligencia es genialidad, la inteligencia y la genialidad son cosas distintas, después de la inteligencia viene la genialidad, alguien puede ser muy inteligente, pero la genialidad es la genialidad y no la supera, gracias tesla y demás inventores genios los creadores del pcb del transistor de los resistores capacitores etc etc la genialidad es la impulsora del mundo moderno y la tecnología, se piensa que la inteligencia lo es todo, pero la genialidad es el futuro

@김명환-g1y 6 ай бұрын

잡음이 심해서 회로 선택을 바꿔야 좋을 것으로 보입니다

@SyedAkhtar-n1u Жыл бұрын

Tunning of IF correctly is the most important part in this circuit

@Bartok_J Жыл бұрын

The IF transformers with most of these Chinese kits are aligned at the factory. They are best left alone until the radio is fully working.

@SaifulIslam-r2j9j 5 ай бұрын

Old is gold ❤❤❤ it

@Дарительзолотогодождя Жыл бұрын

Удивительно, что после такой рукожопой сборки и бездумного кручения сердечников контуров, этот приёмник смог поймать что-то, кроме помех.

@edwardreichard3852 11 ай бұрын

New at this! Was wondering about the bridging that was done near the end

@Linkvolum 5 ай бұрын

Good job

@prabhakarv4193 6 ай бұрын

Very nice

@Georgeolddrones Ай бұрын

Balls up 😂😂👍🇬🇧

@jordaket Жыл бұрын

Ai facut un rahat! Numai oscilatii parazite si armonici! Nu are niciunul din urmatoarele caracteristici de baza acest asa-zis radioreceptor: selectivitate, sensibilitate, fidelitate! 😮