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Video Amplifier
Posted on Wednesday, December 15, 2010   •   Category: Video

Video Amplifier

Circuit Video Amplifier by transistor BC547 & BC557




VHF Video Transmitter 60-200 MHz
Posted on Tuesday, October 19, 2010   •   Category: Video

VHF Video Transmitter 60-200 MHz

Here's a simple video transmitter for VHF TV channel will accept baseband video input, hence it can be driven by most CCD cameras and VCR video outputs. It ouputs roughly 80mW and when used with a 40cm telescopic antenna over 100 meters range is possible.




Digital VGA Switch
Posted on Thursday, May 20, 2010   •   Category: Video

Digital VGA Switch

Digital VGA switch for switching between two PC monitors with MAX465 IC.




TV Transmitter with Audio
Posted on Sunday, May 16, 2010   •   Category: Video

TV Transmitter with Audio

TV transmitter consists of of the two sections: video transmitter and audio amplifying. Both of them actually is transmitters. The main one generates video carrier while the smaller one generates the exact 4.5 (5.5 in some countries) MHz FM audio carrier. When it is supplied to the main section, the combination generates the audio carrier that is the total of the video frequency plus 4.5 MHz (this is the same in the US but different in other countries: 3.5 in the UK, 5.0 in Italy, 5.5 in Australia and so on: see the channel plans).




Digital Video Selector 1.0
Posted on Wednesday, April 21, 2010   •   Category: Video

Digital Video Selector 1.0






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