Control Board, Spark - SVCE (SRT,DF)
  NOTE:   For ICB Units See 828969
   SRT    Use Starting With #17257404 And Also
          Between #17135417 and #17135517
          Prior to Serial #17257404 Except Between
          #17135417 and #17135517 See 811220.
   DF     Use Starting With #17279343 And Also
          Between #17132829 And #17133029
          Prior to Serial #17279343 Except Between
          #17132829 And #17133029 See 811220.
  NOTE:   Also Includes IR Electrode And Wires.
          For Wires Only See 826693,826694,826695
          For Electrode Only See 822797