All items tagged with Current and buzzer (3)

| The familiar Type 555 can be used to switch currents up to 200 mA. Less well-known is its use as a latch with control input. When the in...

| The circuit based on transistors T1 and T2 forms a rectangular-wave generator. The values of resistors R2 and R3 and of capa citors...

| In speed chess a player has to make his move in 5-10 seconds. If he / she does not, he/she loses the game (depending on the agreed conven...