Two identical inverters, which will take a voltage and output it in an inverted form - so that an input of eg. 5V will be output as -5V at the "inv out". The second input can give you the unprocessed original signal, too. Two LEDs give a visual indication of the (positive or negative) output signal.
Width: 4HP
Depth: 35mm
Current: 20mA
Varukorg