Feature Comparison: The Blue Bomber VS 1970 721

SAM 43171 Feature Comparison: The Blue Bomber VS 1970 721

With the serial #4088598, NOMDA 1980 suggests a date of early 1963 for The Blue Bomber

IMAG0765 Feature Comparison: The Blue Bomber VS 1970 721

IMAG0769 Feature Comparison: The Blue Bomber VS 1970 721

1970 721 – note Page Gauge, paper table and variable release lever…

IMAG0768 Feature Comparison: The Blue Bomber VS 1970 721

1970 721 – body casing quick-release levers

SAM 4332 Feature Comparison: The Blue Bomber VS 1970 721

To open up the 1963 721, you flip it on its back and first pull off the bottom cover. It’s held on by friction clips.

SAM 4334 Feature Comparison: The Blue Bomber VS 1970 721

Then you loosen (not remove) the 4 screws that look like this, and slide open the latches.

SAM 4336 Feature Comparison: The Blue Bomber VS 1970 721

Flip it back right side up and lift off the top cover after removing the carriage, platen tray and feed rollers, and flipping up the margin set levers.

IMAG0771 Feature Comparison: The Blue Bomber VS 1970 721

Selectric Colorsx Feature Comparison: The Blue Bomber VS 1970 721

IBM Typewriter Colors, 1961-1967 (Selectric production began 1961, Model C production ended 1967), provided by ProfessorC

Posted on by munk

One Response to Feature Comparison: The Blue Bomber VS 1970 721

  1. Richard P says:

    It’s venturesome to open up a Selectric! The only typewriter part I recognize in there is a good ol’ bell.

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