{HEAD ~ Waveform} 308 represents {TAIL ~ the duty cycle} of the pulse width modulated signal applied to the transistor switch 64 for controlling the voltage and current of the solenoid 16 
represents
{ HEAD ~ Waveform } 308 represents { TAIL ~ the duty cycle } of the pulse width modulated signal applied to the transistor switch 64 for controlling the voltage and current of the solenoid 16
HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH