#6814
LectronFan
Moderator

    Hello meerweten and welcome to the forum of fun !

    Aha, the magic lamp …

    Indeed R1 is a current limiting resistor to protect the lamp (6V, 60mA).

    At startup, let’s assume that T1 is conducting and T2 is not.

    What do you think will happen with the lamp ? Will it remain dark or will it light ?

    Can you see why  ? (hint : R3 is responsible for this).

    So, what do you think will happen when the switch is pushed ?

    You’re on the good way !

    Greetings

    • This reply was modified 5 years, 1 month ago by Michael.
    • This reply was modified 5 years, 1 month ago by Michael.
    • This reply was modified 5 years, 1 month ago by Michael.