There are 57 circuit schematics available. Last circuit added on Tuesday, 19 May 2015.

CircuitCategoryDate AddedOK?
Decoder for encoded transmissions in Videocrypt and D2MACVideoFeb 21, 2005
S-Video to RCA adapterVideoFeb 21, 2005
RGB pattern generator based on an Atmel ATtiny2313 running at 20MHzVideoJun 28, 2011
Video Clock SuperimposerVideoJul 10, 2002
Video clock superimposer using PIC16C711VideoApr 27, 2004
Video Signal AmplifierVideoJun 28, 2009
8 x 8 Audio-video switchVideoMar 23, 2003
Simple VHF video transmitter / video modulator circuit diagram (not FCC approved)VideoApr 12, 2014
500MHz video signal transmitterVideoApr 12, 2014
Micro TV transmistterVideoMay 25, 2012
Small TV transmitter for CCTV observationVideoMay 25, 2012
Video Activated RelayVideo 
Video signal edge enhancementVideoJan 26, 2001
Video amplifierVideoJan 26, 2001
VGA to BNC Adapter (Converter)VideoNov 13, 2010
S-video to composite video adapterVideoJan 26, 2001
VGA to RGB + composite sync -converterVideo 
VGA to TV converterVideoJan 26, 2001
VGA to PAL and NTSC converterVideoJan 26, 2001
Video/Audio Wireless TransmitterVideoOct 23, 2002
PIC micro frame grabber (TDA8708)VideoFeb 01, 2003
YBox2 - DIY networked set-top box that connects to a TV to deliver Internet contentVideoOct 12, 2009
Pico OSD, a PIC video superimposerVideoJun 27, 2010
PIC PAL Video Library including source code and circuit schematicsVideoJun 27, 2010
An automated, self-recording surveillance camera using an SD memory card for recording digital videoVideo 
Generate video signals in software using PICVideo 
Generate composite color video signals in software using an SX microcontrollerVideo 
Commodore 64 Video Modulator 251025 SchematicsVideoNov 16, 2002
Commodore 64 Video Modulator 251696 SchematicsVideoNov 16, 2002
15 Channels Cascaded MAX455 Video MuxVideoJan 08, 2014
Voltage Controlled Variable Gain Video AmplifierVideoOct 03, 2013
Apple IIe RGB to CGAVideo 
Video switcher to allow monitoring of multiple video cameras using a single monitorVideoMay 24, 2010
Low cost video motion detection using a PIC16F819 and an LM339VideoMay 24, 2010
Video line receiver using AD818VideoMay 25, 2012
VHF/UHF TV modulatorVideoNov 16, 2002
TV Signal Amplifier covers frequencies from 40MHz to 900 MHzVideoJun 28, 2009
Motorized Video Camera MountVideoJun 28, 2009
TV Transmitter - VHF band TV transmitter using negative sound modulation and PAL video modulationVideoJun 28, 2009
LH0032 video amplifierVideoOct 24, 2002
LM359N video amplifierVideoOct 24, 2002
Video switcher - run up to four cameras into one video monitor (PDF)Video 
Macrovision removal - includes circuit diagram and background informationVideoJan 01, 2003
Video DVM - Display voltage on a TV - based on Atmel AT90S1200 and generates vid signal in softwareVideo 
Video Stabilizer/MacroVision RemovalVideoSep 01, 2009
Commodore RF modulatorVideoJan 01, 2003
VGA to SCART adapterVideoFeb 21, 2005
Television signal amplifierVideoFeb 21, 2005
Video signal amplifier circuitVideoFeb 21, 2005
TV/Radio antenna cable galvanic isolatorVideoJan 26, 2001
TV RGB signal output from a SVGA graphics cardVideoApr 14, 2003
Circuits to transmit and demoludate RF / video signals over fibre optic cableVideo 
AVR (AT90S2313) composite PAL colour bar generatorVideoApr 17, 2004
Motorized Video Camera MountVideoSep 21, 2006
Homebuilt video digitizer Mark IVideoFeb 01, 2003
Homebuilt video digitizer Mark IIVideoFeb 01, 2003
Camera switching circuit to run multiple cameras with one monitorVideo