Online simulation of the инвертор rtl circuit

This is an inverter implemented using resistor-transistor logic, the earliest form of logic implemented with transistors. Click the input on the left to toggle its state. When the input is high, the output is low, and vice versa. When the input is high (3.6 V), current flows from the base to the emitter. The transistor wants the collector-emitter current to be 100 times the base current, but it cannot, because the collector is connected to the same voltage through a larger resistor. So the transistor is in saturation; it pulls the collector voltage down to the saturation voltage of 9.7 mV. When the input is low (at ground), no current flows through the base, so the transistor is off, and 3.6 V remains at the collector.

This page is a utility for simulating инвертор rtl online with specified initial values.