T57

The Tektronix T57 aka T551 is a dual-beam CRT used in the 551 below S/N 2032. Later models used the T5511 tube.

It has two electron guns and two pairs of vertical deflection plates, but common horizontal deflection plates.

The improvement added in the T5511 was to support a horizontal beam registration circuit that allows to compensate for stray fields in order to make the starting times of both beams coincide.

Data

• Tektronix T551 CRT Data, tentative (PDF, needs OCR)

Links

• Keller, Tektronix CRT History, Part 3, p.4

Part numbers

Service Scope No.27, August 1964

Phosphor	Part No.
P1	154-186
P2	154-160
P5	154-210
P7	154-189
P11	154-143