We found this circuit in a 1991s PE Hobbyst Handbook. The circuit fires 10 LEDs that can control incandescent lamps according to their maximum current.
This interesting digital counter with relays with complementary outputs was found in the Radio...
The idea of this circuit is that when the device in SO1 is turned on, the device connected to...
This interesting circuit allows to obtain symmetrical voltages from a simple battery. Among its...