I have made available the next video under the category calculations, simulations and experimentations. I compare the power efficiency of a Class A amplifier to a Class D amplifier. The power analysis is done in spice and all files are available for you to download under Diagram and datasheets. For the Class D amplifier I use the Half Bridge driver LT1160 from Linear technologies. Linear Technologies is well know as a company which builds superior Integrated circuits. I replaced for the Half Bridge driver board I did build the 7805 voltage regulator with the LT1086C because it was able to keep the voltage stable under high load. For LT spice are no other half Bridge driver components available so people build their own component but do not share what they build so we cannot verify the accuracy of their measurements. You find the video under courses in calculations, simulations and experimentations. The direct link for all member is here.