comprises any other structure which is suitable to generate the bipolar pulses illustrated further below by means of fig2 and 3 the transmission line 30 comprises an input 32 which is connected to the output 12 of the driver 10 and an output 34 the transmission line 30 is any line for example a simple wire with the reference potential or ground being provided by another line means alternatively the transmission line 30 is a non twisted or twisted pair a coaxial cable or any other line a device 50 includes a delay circuit or member consisting of a first partial delay member 52 and a second partial delay member 54 an input 56 of the delay member is the input of the first partial delay member 52 and is also connected to the output 34 of the transmission line 30 an output 58 of the first partial delay member 52 is connected to an input 60 of the second partial delay member 54 an output 62 of the second partial delay member 54 is also the output of the delay member the device 50 further comprises differential amplifier circuitry 70 having a first input 72 a second input u2212 74 a strobe input str or third input 76 and an output 78 the first input 72 of the differential amplifier circuitry 70 is connected to the input 56 of the delay member and to the output 34.