• I.K. Sedlyarov, V.S. Arbuzov, E.I. Gorniker, A.A. Kondakov, S.A. Krutikhin, I.V. Kuptsov, G.Y. Kurkin, S.V. Motygin, V.M. Petrov, A.M. Pilan, A.G. Tribendis, N. Vinokurov
  BINP SB RAS, Novosibirsk
• V. Korchuganov
  RRC, Moscow

The project of upgraded RF System of Siberia-2 Electron Storage Ring / SR Source, Moscow, Russia, is presented. The upgraded RF system will allow to increase the total accelerating voltage up to 1.8MV and ensure operation of the storage ring with new superconducting wiggler at beam currents up to 0.3A. RF system operates at 181MHz. It consists of 3 single bi-metal cavities, 2 power amplifiers based on GU-101A tetrodes with output power of 200kW, power transmission lines and control system. Parameters of the upgraded RF system are given, the design of its main elements is shown.