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