A flashlamp pumped dye laser with an oscillator and an amplifier is described. In this system, a nondispersive Brewster prism expander, a pressure tuning device and travelling wave amplifier are used. The overvoltage synchronously triggered spark gap is used in the travelling wave amplifier. By using Rh6G, we obtained: peak power over 30 kW, linewidths 0.01-0.05A and tuning accuracy better than 0.004 A.