Showing posts from May, 2014

Picture Tube

Picture Tube: The Picture Tube is the costliest and most important part of a television receiver. The picture tube is a cat…

Monochrome TV Receiver

Monochrome TV Receiver: Monochrome TV Receiver has the following blocks. 1. TV Receiving Aerial: the TV signal radiated by …

Monochrome TV Transmitter

Monochrome TV Transmitter: Figure shows the simplified block diagram of a television transmitter. The video signals obtaine…

Positive and Negative Modulation

Positive and Negative Modulation:  We use AM for video signal. Generally, the amplitude of the carrier increases with increa…

Composite Video Signal

Composite Video Signal: The composite video signal is the video signal into which blanking and synchronizing pulses are ins…

TV Standard and Frequency Requirements

TV Standard and Frequency Requirements: (a). American Standards: Figure (a). The band of frequencies assigned to a station …

Sequential and Interlaced Scanning

Sequential and Interlaced scanning: The division of picture into many horizontal lines called scanning. Scanning can be com…

TV Camera Tubes

TV Camera Tubes: Camera is the first and basic equipment in a TV. The input to a camera  is the light from the picture or s…

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