With port 1 or port 3 as the input the hybrid ring is a 0?hybrid as stated.
2.
The hybrid rings are a combination of carbon and sintered bronze cones providing higher capacity and shift performance.
3.
The hybrid ring is not symmetric on its ports; choosing a different port as the input does not necessarily produce the same results.
4.
This fact leads to another useful application of the hybrid ring : it can be used to produce sum ( ? ) and difference ( ? ) signals from two input signals as shown in figure 12.
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