circuit observation

Discussion in 'General Electronics Chat' started by beingsallu, Jul 24, 2012.

  1. beingsallu

    Thread Starter New Member

    Jul 10, 2012
    18
    0
    can any one observe this 555timer circuit and tell me the circuit schematic
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    It looks like a partly completed or damaged [missing components] astable multi-vibrator configuration of the 555 timer. Output pin 3 seems to be driving the base [via a resistor] of a transistor for an unknown purpose. The transistor collector connection is not made to anything external.

    IC power pin 8 connection seems to be missing on the underside of the board.

    Basically it's a mess.
     
  3. beingsallu

    Thread Starter New Member

    Jul 10, 2012
    18
    0
    yup it's a big mess.
     
Loading...