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The DuMont 3WP  (P/N 154-0059-00) is a series of flat-faced 3" mono-accelerator CRTs introduced in 1952, which were among the most widely used CRTs of the 1950s.

The 3WP1 had P1 phosphor, the 3WP2 used P2, and the 3WP11 had P11.

They are used in the Tektronix 315, 310, and 360 oscilloscopes.

Tek part numbers:

  • 154-0059-00 = 3WP2