Source:Dynair Electronics, San Diego, CA (1966)
Dynair Video Switching Techniques Product Catalog; Television Equipment Short Form; Video Output Amplifier Model DA-5150B; Switch Module SW-5100A; Series-5100 Video Switching System; "Facts About Multiple-Input Multiple-Output RF Switching". 26 page Product Catalog illustrated with black and white photographs and diagrams. Includes descriptions. Page 20 includes a photo of a rotary dial panel for a video switching system.