Hearn, William. EAB Videolab., undated.

Hearn, William. EAB VideoLab Instruction Manual (E-Module). Berkeley, California: Electronic Associates of Berkeley, undated.

Hearn, William. EAB VideoLab Instruction Manual (Modules A-D). Berkeley, California: Electronic Associates of Berkeley, undated.

Hearn, William. EAB VideoLab Module E Effects Manual (Volume One). Berkeley, California: Electronic Associates of Berkeley, undated.

Hearn, William. EAB VideoLab Modules A through D (3 copies). Berkeley, California: Electronic Associates of Berkeley, undated.

Hearn, William. EAB VideoLab Module E Summary. Berkeley, California: Electronic Associates of Berkeley, 1979.

Hearn, William. EAB Videolab Schematics. Berkeley, CA: Electronic Associates of Berkeley, 1979.

Hearn, William. 77 Videolab Module Wiring. Berkeley, California: Electronic Associates of Berkeley, 1978.

Hearn, William. 77 Videolab Input Board Sketch; Power Supply; Input Circuits-Pin Connections. Berkeley, California: Electronic Associates of Berkeley, 1977.

Hearn, William. 77 Videolab Output Keyer Fader, Effects Amp, and Options. Berkeley, California: Electronic Associates of Berkeley, 1977.

Hearn, William. 77 Videolab Wiring Diagram for "A" Module. Berkeley, California: Electronic Associates of Berkeley, 1977.

Hearn, William. EAB Videolab Interconnections or Patch Diagrams 1 through 12. Berkeley, California: Electronic Associates of Berkeley, 1977.

Hearn, William. 77 Videolab Matrix Switcher. Berkeley, California: Electronic Associates of Berkeley, 1976.

Hearn, William. 77 Videolab Module "A" Complete. Berkeley, California: Electronic Associates of Berkeley, 1976.

Hearn, William. 77 Videolab Voltage Controlled Colorizer, Genlock Version. Berkeley, California: Electronic Associates of Berkeley, 1976.

Hearn, William. Letter Regarding VideoLab. Berkeley, California: Electronic Associates of Berkeley, 1974.

Hearn, William. 3,627,912 "Visual Display of Complex Color Television Sound Wave Signals" (2 copies) and EAB VideoLab Modules A through D. U.S. Patent Records, Electrical, 1971.

Hearn, William. The Video Colorizer - 3,627,912 "Visual Display of Complex Color Television Sound Wave Signals" (2 copies). Berkeley, California: The Electronic Co-Op/ Electronic Associates of Berkeley, 1971.