Introduction:
The following program is a training series on the IBM Selectric Typewriter. It was produced by Audio Visuals Universal in the 1970s, and is no longer available. Originally, the series was sold as sets of audio cassettes and 35mm color slides. After decaying for decades, the entire series was digitized for download online in 2008.

Credit is due to the following persons:
Peter Brun - Initially purchased the series on ebay and was kind enough to make copies for digitization. Additionally, he digitized the slides and augmented their information.

Bill Hicks - Digitized the audio cassettes and posted the series online for download.

Jim Bigwood, Audio Supervisor @ Maryland Public Television - Generously offered the use of his facilities to digitize the audio cassettes.

Table of Contents:
10-1A Positive Power: Operational Shaft
10-1B Positive Power: Printing Mechanism
10-2A Negative Power: Escapement, Tabulation, Backspace, Carrier Return
10-2B Manipulative Assignments
10-2C Dual Pitch: Selectric II
10-3A Input: Keyboard
10-4A Output: Printing Mechanism
10-4B Tilt & Rotate Adjustments
10-5A Sundry Mechanisms: Platen, Index, Fabric Ribbon
10-5B Correcting Tape Mechanism: Tech III Ribbon Mechanism

Legal License: CreativeCommons Attribution-Noncommercial-Share Alike 3.0 Unported
Essentially you are allowed:
to Share — to copy, distribute and transmit the work
to Remix — to adapt the work

Under the following conditions:

https://creativecommons.org/licenses/by-sa/4.0/