Two cardstock binders containing original mimeographed copies of Apple Computer "Level 1 Service Bulletins," issued from September 1979 through July 1983, 9 x 11.5, ostensibly containing Service Bulletins #1–67 (however, Bulletin #1 and Bulletin #4 were removed due to obsolesce to avoid confusion, per instructions issued by Apple in April 1980). The bulletins document a variety of tests, troubleshooting, upgrade, and repair procedures for the Apple II and Apple III computers, software, and peripherals. In overall very good to fine condition, with general wear from use.
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