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ZW Transformer


Production:  1948 - 1966

King of the Hill, The Grand-Daddy, The Big Boy -- these are just some of the many nicknames given to the ZW Transformer during the past 50+ years. Lionel's ZW produced the most power of any postwar transformer. Even today, the ZW is sought after by Lionel enthusiasts as it is a reliable and dependable transformer.

Standard features of the ZW include:

  • 250 watts for 1948 & 1949; then upgraded to 275 watts in 1950.
  • Four controls to run four independant trains.
  • Directional controls (only for the two end controllers)
  • Horn and whistle controller (only for the two end controlles).
  • Circuit breaker.

Additional Detail, Photos & Box Information

250 Watt - For the first two years the ZW was rated at 250 watts. The 250 watt version has a different Circle L logo mounted on top of the transformer compared to the 275 watt version.
275 Watt - The most common ZW .

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