Research Teleray 3900

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Research Teleray 3900
Manufacturer Research
Model Teleray 3900
Lifetime
Introduced April, 1975
Introductory Price $2,490
Communication
Interfaces RS-232C,
20 mA current loop,
TTL serial
Baud Rates 110-9600
Display
Size 12-inch, 15-inch optional
Phosphor P4 white
Refresh Rate 60 Hz
Character Modes
Resolutions 40x24, 80x24
Matrix 5x7

The Research Teleray 3900 terminal was introduced in April, 1975 at a price of $2,490.[1]

Manx

References

  1. "CRT Series Displays 'True APL', Ascii", Computerworld, April 30, 1975, pg. 9