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  1. S

    Transistor Tester

    Sir kindly explain me how to make pcb of the transistor tester
  2. S

    Transistor testor

    Actually i want to know the working of transistor testor and how to make pcb itching of transistor tester
  3. S

    Transistor testor

    I want to know about the pcb making of transistor testor using ic 555 and all working of transistor testor