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  1. M

    Ferrite rod antenna explanation

    Rely, man compliment, you are a specialist to find the problems.....;-)
  2. M

    Ferrite rod antenna explanation

    i found here https://imgur.com/a/JpwJs, and they say you can use lm368, but my problem is ferrit rode, thanks
  3. M

    Ferrite rod antenna explanation

    did you look the site? so to make it seperate L1 and L2? so i have to make everything seperate in ferrite rod, for that i say i dont know how to make ferit rod, thanks
  4. M

    Ferrite rod antenna explanation

    yes of course here https://imgur.com/a/JpwJs
  5. M

    Ferrite rod antenna explanation

    Sorry man, i just dont understand so good, because is my 4 times that i make bad ferrite, i know i make mistake, i have signals, i try i search i on internet for ferrit rod, i make nervous, i dont find nothing easy you mean wooden to hold the ferrit rod? so in the ferrit rod, to wind a paper...
  6. M

    Ferrite rod antenna explanation

    this is the schematic , i make also the am receiver, but i dont know the ferrit rod(is problem i try to make but the radio dont work)(simpele i dont know how to make a ferrit rod antenna)
  7. M

    Ferrite rod antenna explanation

    hello to everybody, can some help to make a ferrit rod antenna and to explain me thnx is for am radio, trf regenerative i have a ferrit rod 90mm diameter, and i have 0.5mm wire magnetic thnx
  8. M

    Replace variable capacitor with varicap

    You are right .....
  9. M

    Replace variable capacitor with varicap

    nice wekend to everybody
  10. M

    Replace variable capacitor with varicap

    so he need demulator, sorry audiogurru i realy dont understand, why somebody can lie, is workinig? thnx
  11. M

    Replace variable capacitor with varicap

    THNX man, and you need to add audio power amplifier? for example like LM386 and a small speaker? right? of what do you think to do can you tell me pleaase......
  12. M

    Replace variable capacitor with varicap

    So is dificcult to learn varicap, and also is difficult to make capacitor and tunning coil?
  13. M

    Replace variable capacitor with varicap

    Mr, thanks fo time writting to me, the capacitor c7 is wrong i know, and i use axial inductor, and i hear noise, for more.....i asked to many times here, and other forums, about variable capacitor, but is difficult to find and expensive and they dont use anymore, now they use varicap, so i...
  14. M

    Replace variable capacitor with varicap

    thanks audioguru...........
  15. M

    Replace variable capacitor with varicap

    i put two capacitor in serie, but i dont know ow to select value?,
  16. M

    Replace variable capacitor with varicap

    I use, like in internet i found, you can look the circuits i posted, I isolate with with 1M OHM , look the change i make
  17. M

    Replace variable capacitor with varicap

    hello yu mean between inductor IN SERIE wth capacitor c2 100n, but i think is not working, i hear low and high noise, but i cant pick up and station ;-ç
  18. M

    Replace variable capacitor with varicap

    i will try, this my circuits
  19. M

    Replace variable capacitor with varicap

    Hi, to everoyne, i post before this circuits am receiver, wich i take from one site(is for experiment), can somebody tell me, how to replace variable capacitor with varicap IN THIS CIRCUIT , to remove variable capacitor, I have varicap BB112
  20. M

    Hello, varactor(varicap) formula help

    thank you
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