Design a transformerless audio power amplifier with at least 38% efficiency. a 130v dc supply is available at the client's site. the amplifier should be capable of supplying at least 5 w to a 1692 load at 1 khz. the input impedance should be greater than 1002 and the voltage gain should be greater than 0.8 v/v 1 .

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).