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  1. sssaaa

    AJP's Transmitter

    here is the circuit diagram
  2. sssaaa

    AJP's Transmitter

    circuit diagram
  3. sssaaa

    AJP's Transmitter

    Hi All, I want to built this transmitter, plz give your suggestions about this transmitter. http://www.ajpotts.fsnet.co.uk/Circuits.html
  4. sssaaa

    Audioguru FM Tx

    20mW or 250mW?
  5. sssaaa

    audioguru fm transmitter

    this is the only(directional antenna) technique, or other military or other secret sevices use different  techniques and equipments?
  6. sssaaa

    audioguru fm transmitter

    this is the only(directional antenna) technique, or other military or other secret sevices use different  techniques and equipments. i m asking you these things because in my country there is no good law for these things :( for example if some one make tansmitter for hobby, educational or...
  7. sssaaa

    audioguru fm transmitter

    And one more question with thanks. i use trimmer but they are little big. i want to use like urs. i have scrap of some clocks in which clock i will find them?
  8. sssaaa

    audioguru fm transmitter

    from which technique the RF cops will get any transmitter? some one tell me that they use Radar ? is it Right? if any one "ON"(start)any illegal transmitter they will caught him in minutes or it takes time?
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    How many people here scrap old electronics?

    I prefer used parts if you take it from somthing you have in your scrap which made by japan. japan parts quality is good as compare to others.
  10. sssaaa

    audioguru fm transmitter

    I connected R8 to ground instead of to the positive supply but I didnot get good results, then I connected R8 to positive then the circuit gave good output. why the circuit hadnot given more output when i operate Q3 in class-C?
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    Audioguru FM Tx

    hi audioguru your fm transmitter output power is 230mW or 360mW?(at 9volts) and on what minimum mAmp at 9V your transmitter work good.
  12. sssaaa

    fm

    means that the ossillator circuit not work fine alone. i measure its output power (first stage) it is very good on 12 volt. any idea to use it alone?
  13. sssaaa

    fm

    hi can any one know what is the out put of first stage(oscillator) of this circuit on 9, 12, & 16 vots, if i want to use it alone. not with rf amplifier stage. do i have to change L1 for this alone circuit or it will same. for 88-108 MHZ.
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    audioguru fm transmitter

    hi audioguru i want to know that what will be the out put power of this circuit in  mW  when we do these changes. thanks..
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    Fm 4W inductor?

    Hi AmRadiant read this... http://www.electronics-lab.com/forum/index.php?topic=3035.0
  16. sssaaa

    audioguru fm transmitter

    plz give diagram how to oprate Q3 in class-C.
  17. sssaaa

    audioguru fm transmitter

    hi audioguru i measure your transmitter with 1 metre distance between both antennas. field strength metre and your transmitter. and other one or two transistor fm transmitter circuit i have. but your circuit is generating more RF power as compare to them. and stability is good also. but i judge...
  18. sssaaa

    audioguru fm transmitter

    thank you very much audioguru :)
  19. sssaaa

    audioguru fm transmitter

    but my question is y my metre shows 3-4 volts. in two transistor (by joint antenna ) and 5-6 volts in one transistor. when i was made 4W (two transistor 2219) transmitter when my metre shows 10-12 volts from 9volts duraplus battery. and 16-17 volts from 12 volt supply. in joint antennas of field...
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    audioguru fm transmitter

    hi audio guru i built your circuit and it is working. i check it by field strength metre. I joint both circuits antenna together. (both circuits have 5cm antenna) your circuit shows 3 to 4 volts in digital volt metre. and previosly i built a one transistor fm transmitter which shows 5 to 6...
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