Due to the advent in technology, solid state devices have been used recently for high power applications like microwave heating, plasma generation and powering RF cavities of accelerator 1. Existing Lower Hybrid Current Drive (LHCD) system of SST-1 Tokamak commissioned in Institute for Plasma Research (IPR), India relies on variable power (up to 20 W) solid state devices to drive four klystrons each of 500 kW at 3.7 GHz 2. An effort has been initiated to enhance the power handling capacity (up to 1 kW) of continuous wave (CW) solid state source at 3.7 GHz. It would be used to test and characterize high power RF components at 3.7 GHz. In future this source may be augmented in modular fashion to enhance the output power. The paper examines the performance of the system incorporating several solid state power amplifier modules, power combiners and dividers. The effect of amplifier failures, amplitude and phase imbalance on the system output power and efficiency is analyzed. The yield analysis (Monte Carlo simulations) using AWR Virtual System Simulator (VSS) has been carried out to ascertain the behavioral variations at the system and component level. The system level study and design considerations at the component level will aid researchers for high power solid state amplifier designs.