R. Kambach (2)

1-07-1991 | Siemens Type 5AB0529 IC may be programmed for periods from 1 second to 31 hours 30 minutes. lt may be used for switching staircase lights...

1-07-1991 | Keeping your car battery constantly charged when the car is not in use appreciably increases the life of the battery. Charging is, of co...