Jump to content
Electronics-Lab.com Community

eplanet

Members
  • Content Count

    88
  • Joined

  • Last visited

    Never

Posts posted by eplanet

  1. hello audioguru
    thank you for your help to me.
    but not have result up to now because my circuit have alarm continously.
    please check it :
    collector  BFR90 : 2.91v
    IC :
    pin1 :1.29v
    pin7: 1.93v
    pin8 : 1.65v
    pin14 : 2.04v
    R6: 1.1M
    and with C2: 4.7
    P1:volume  5k
    antena: 50cm wire
    and pin2 of LS connecting to +9v because in pcb not have this connect but in schematic diagram connected.
    for pin1 that have 1mv what can i do ?

    thanks for all and all the best

  2. hello
    I am new user in ur forum I am very enjoy but many years ago reading ur information in any forum specially "audioguru" hello audioguru.
    I am make pcb eavesdropping device detector but not work no sound. i am testing all component but dont listening any sound of buzzer.
    no short circuit  what can i do ???????????????????????????

×
  • Create New...