Condenser, Dual (611-2,632-2,642-2,650-2,650G-2)
  611-2   Use From Serial #2147190 to #2600000.
          Prior to Serial #2147190 See 7016401.
          Starting with #2600000 See 7002008.
  632-2   Use From Serial #2128562 to #2600000.
          Prior to Serial #2128562 See 7016401.
          Starting With #2600000 See 7002008.
  642-2   Use From Serial #2143499 to #2600000.
          Prior to Serial #2123499 See 7016401
          Starting With #2600000 See 7002008.
  650-2   Use From Serial #2128097 to #2600000.
          Prior to Serial #2128097 See 7016401
          Starting With #2600000 See 7002008.
 650/G-2  Use From Serial #2223214 to #2600000.
          Prior to Serial #2223214 See 7016401.
          Starting With #2600000 See 7002008.