Very simple MW Superheterodyne radio.

500 - 1600 kHZ

[@anandawijesinghe6298]

I don't see why the IFTs were rewound to get 145 kHz, and builder did not keep the std 455 kHz of the IFTs, adjusting the Osc coil to suit since he was winding a new osc coil anyway. Also, I agree with a previous commentor that the design is not simple. Nevertheless, it is useful to an experimenter in that it incrementally builds upon the previously buily Reflex TRF radio. Also, I would have replaced the bulky 2-gang Tuning Air capacitor with varactor diode tuning with a 10-turn potentiometer. But, this is a really good effort from which others can lrarn to mix-and-match! Bravo !

[@dz-abouttechnique1849]

Thank you for your comment.

[@colloidalsilverwater15ppm88]

Finally, it is not simple at all. One modul, second, third....

[@xshufix]

Scheme simple si foarte interesante. Practic si functional. Felicitari!

[@dz-abouttechnique1849]

Multumesc!

[@hamzahkitech5228]

That's excellent project , i am happy for you , in next videos make video on transmitters like medium wave, shortwave and fm transmitters

[@dz-abouttechnique1849]

I'll try. Thank you for your comment.

[@user-ut1hs4om8w]

Muito bom genial 😊 moro no sul do Brazil❤❤❤❤❤❤❤❤❤❤❤

[@dz-abouttechnique1849]

Saudações!

[@user-oq1um2ct1l]

Сначала наматывается катушка связи а потом поверх неё основная катушка, так сделано в импортных супергетеродинных приёмниках

[@dz-abouttechnique1849]

Я так пробовал изначально. Посредственные результаты.

[@danielraducu9073]

romania ?

[@andreic21]

Da, cred ca e in Romania ca se aude baliza aero de la aprox 521

[@manuelsilva5241]

tantas cocegas na montagem mas para quê ? devia estar tudo montado juntinho para não haver interferências ,,,mas ficou bom ok para cima 37

[@dz-abouttechnique1849]

Para observar a funcionalidade do oscilador. Obrigado!

[@andrewandrosow4797]

Hello! Interesting device! But there is no AGC - on some loud stations sound is distorted.

[@dz-abouttechnique1849]

AGC is working. 🤓

[@erikdevriese671]

@@dz-abouttechnique1849 You mean by way of the reflex stage? How do you accomplish tracking? I don't understand why IF of 140kHz is choosen but I like this hands-on project very much. Congratz!!

[@dz-abouttechnique1849]

@@erikdevriese671 Thank you! I chose the intermediate frequency of 140 kHz because there are fewer parasitic signals. I didn't understand what you mean with the first questions...

[@erikdevriese671]

@@dz-abouttechnique1849 OK! I will try it myself. Thanks!