Calibrating a read channel is disclosed. Various embodiments of the present invention include the use of a measurement section downstream of the component being tested. Thus, I have chosen my design as a very practical Rotating Centrifugal-Laser Nuclear Fusion Reactor, a design without plasma and involve using a high-speed centrifugal-laser Hydrogen containment fusion reactor. Preferably a support member, which is integral with one of the members, extends downward from one of the ducts and supports an HVAC case. Then, four receiver electrodes forming two receiver pairs are connected so that the current flowing between each pair is measured and converted to a voltage.