Each is connected to {TAIL ~ an adjustable amplitude precision current source} of fixed frequency and {HEAD ~ an oversampling type digital voltmeter} 
Each is connected to { TAIL ~ an adjustable amplitude precision current source } of fixed frequency and { HEAD ~ an oversampling type digital voltmeter }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD