Technical manual for Video and audio systems with alternate current call

In few days the new Technical book in english for the video and audio systems with alternate current call is available. It replaces prior Technical Manual n.8 and n.9, respectively for audio and video systems. It is a very useful work tool to be frequenlty consulted. Being a detailed volume it is composed by 192 pages and it describes technical schemes and features of the Project, Compact, Studio, MODY and Matrix lines.