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  1. M

    Hello, can somebody help wich transistor is like bfg520

    HI, Audioguru, can you please help for values of RC, for tank circuit i gona take it to make, i have this site and here is for lc formula etc....http://www.zen22142.zen.co.uk/Theory/tunedcct.htm please :(
  2. M

    Hello, can somebody help wich transistor is like bfg520

    I dont know Steve, to make mistake in book...
  3. M

    Hello, can somebody help wich transistor is like bfg520

    I change the audioguru, but i did not know wich value to put in R and C, can you told me please
  4. M

    Hello, can somebody help wich transistor is like bfg520

    I go to change, but one more time i with no ask you anymore, is rely this circuit wrong, you know man i dont understand how he can do such big mistake
  5. M

    Hello, can somebody help wich transistor is like bfg520

    But did you run it, the file is working perfect
  6. M

    Hello, can somebody help wich transistor is like bfg520

    yes that right, i correct it but it has no correct wave, about the second circuit is so design for 5.1Mhz, not for 10.7 MHZ, but i draw it in ltspice i thought he gonna explain how to change in the book , but i did not explain:(
  7. M

    Hello, can somebody help wich transistor is like bfg520

    One simple question Do you understand this circuits(i think yes, you know) So you said it resonate at 5.1mhz, wich one are those LC circuits in schematics?(wich make lc at 5.1Mhz) wich capacitor and inductance, can you look in circuits and you can tell me, and problem is solved i think those...
  8. M

    Hello, can somebody help wich transistor is like bfg520

    No Audioguru like example I make 0.1P(it was 0.1 AND resistor OF 500K)(i change to self experiments i did it,) Yes is easy i know, but wich are the capacitor(i dont know wich capacitor, tell me please wich capacitor and i gonna change self, wich inductor with capacitor and gonna make 10.7? i...
  9. M

    Hello, can somebody help wich transistor is like bfg520

    DISCRIMINATOR circuit, and why they can pass audio signal what wrong with ratiod detector
  10. M

    Hello, can somebody help wich transistor is like bfg520

    But you say i miss the capacitor to be tuned perfect(i will solve), now i know, but can you tell me, wich capacitor and inductore create 5.1Mhz, can you tell me please so i can change the resonance please thanks
  11. M

    Hello, can somebody help wich transistor is like bfg520

    Hi sir, do you know this circuit with Jfet, do you know, wich form tuned circuits inductor and capacitor, do you see the circuit is inductor with 470p tuned of wich capacitor ??:(
  12. M

    Hello, can somebody help wich transistor is like bfg520

    no no i am loking to build one receiver just that, nothing else and i am almost finish
  13. M

    Hello, can somebody help wich transistor is like bfg520

    Sorry AudioGuro, with wich capacitor you see that is 5.1Mhz, with wich capacitor you calculate tuned circuits
  14. M

    Hello, can somebody help wich transistor is like bfg520

    Oh sorry Audio guru, i go to change, the components with you show me...……..thnx Ah Audioguru that i take from one book, and the last one i take from http://www.arrl.org/files/file/Technology/tis/info/pdf/8506025.pdf like in this circuits also in second, i make mistake with transformer
  15. M

    Hello, can somebody help wich transistor is like bfg520

    No i take from the site "whonos", this http://www.arrl.org/files/file/Technology/tis/info/pdf/8506025.pdf, but man i make some changes, i dont know how to make a transformer, the 2 capacitor connected in parallel with transformer, i read somewhere in internet, they make center frequency, to be...
  16. M

    Hello, can somebody help wich transistor is like bfg520

    THANKS MAN, yes that was true for mutual inductance coupling but i solved, thank you, but i dont know how to make transformer COUPLING, can you please (when you have time) to make it, i making one but is not working, i have trouble to make transformer i send you the schematic can you please...
  17. M

    Hello, can somebody help wich transistor is like bfg520

    Sorry for late, i was no in internet, what is dat multiple inductance? wha they do, I will like to ask you do you know something radio to design, i make rf amplifier, local oscillator, if amplifier, only i dont know so much how to demulate
  18. M

    How to make FM modulated signal in SIEMTRIX ? how to configure sffm

    Audioguru, i am working, i have 2 dochters and wife and mother and father, i cannot do a lo of thing, i know i speak bad eneglish,but i try the best to speak, but is my hobby, i dont have time to follow english cursus, IS DIFFICULT, if i win loto i gonna take one personal teacher to learn me....:D
  19. M

    How to make FM modulated signal in SIEMTRIX ? how to configure sffm

    i post in this forume and one else, where is the third forum? are you a spy, of what you have with me, what for problem you have? why you give criticism all the tilme, loook here is to help each other, not to give criticism, and spy, i wil like rely to know, who are you, look i dont know so much...
  20. M

    How to make FM modulated signal in SIEMTRIX ? how to configure sffm

    Hello, please can somebody help me, how to configure signal modulated for fm receiver 88-108Mhz i have SFFM? but i dont know how to configure? somebody can help me please? thanks
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