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Amplifier Circuits:  Video
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Video Amplifier Circuits:  #'sB    C - F    G - L      M - P      R - S     TU     V - Z
 

Last Updated: November 21, 2017 05:44 AM

Circuits Designed by Dave Johnson, P.E. :
Video Signal Edge Enhancements -  I designed this circuit many years ago, based on the claims that the technique would improve the quality of standard TV images.  The circuit adds information to the edges of the objects and was reported to bring out more detail.  After building and testing. . . Circuit by David A. Johnson P.E.-July, 2000

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Video Modulator 251025 Schematic-Commodore 64 -  Takes in S-video format video + mono audio, outputs S-video, composite video and modulated RF signal

Video Motion Detection -  This device uses a PIC16F819 and an LM339 to detect motion on a video signal.  The incoming video is 'clamped' using one section of the LM339, the sync tips are detected with another section, and a 3rd section can detect VBI or other data. __ Designed by Luhan Monat-Mesa Arizona

Video multiplexer uses high-speed op Amps -  08/21/03  EDN-Design Ideas Video multiplexers route video from several sources to a single channel.  Low-end consumer products use CMOS analog switches and multiplexers, such as the 4066 and 4051.  Unfortunately, these devices have a series on-resistance that __ Circuit Design by Bruce Carter, Texas Instruments, Dallas, TX

Video OSD On Screen Display -  GPS data on the screen NOW with Video clips __ Designed by Thomas Scherrer OZ2CPU

Video Ping Pong Game -  Schematic only, no circuit description __ Designed by dt @ dt.prohosting.com

Video Processor -  Circuit Only __ Designed by Stephen Edwards

Video signal Amplifier -  This is a small circuit with two maximís ic, MAX4467 as microphone amplifier and MAX406 as VCO FM transmitter.  Itís suitable for short range FM transmittion aka wireless FM microphone.

Video signal Amplifier -  Video cassette recorders are becoming ever so popular and as it was to be expected the market is flooding with accessories that make the use of the VCR easier and enhance its operation.  The circuit that we offer to you here is a broad band amplifier which will take the video signals from your VCR and will amplify them sufficiently to drive up to 3 monitors, TV sets (provided that they can accept direct video signals), or other VCRís for recording from one video to up to three others __ Contact: IQ Technologies

Video Signal Amplifier -  The complete circuitry for Q2 is not shown in this figure, as the main concern is the signal-developing resistor (R5) for Q2.  The coupling capacitor (C2) and the resistor (R5) limit the low-frequency response of the amplifier and cause a phase shift.  The __ Contact: IQ Technologies

Video Signal Distribution using Low Supply Voltage Amplifiers -  DN327 Design Notes __ Linear Technology/Analog Devices

Video Signal Edge Enhancements -  I designed this circuit many years ago, based on the claims that the technique would improve the quality of standard TV images.  The circuit adds information to the edges of the objects and was reported to bring out more detail.  After building and testing. . . Circuit by David A. Johnson P.E.-July, 2000

Video Stabilizer/MacroVision Removal -  Have you ever attempted to copy a commercially produced video only to end up with a distorted and jumpy image? If so, then you have run afoul of MacroVision.  MacroVision is the most popular copy protection scheme used on the majority of content distributed on VHS cassettes.  Like all copy protection, it does nothing to discourage the real pirates and only annoys the user who may wish to create a legal copy for backup and archival purposes.  This circuit can eliminate MacroVision encoding in both NTSC and PAL recordings. __ Designed by Antti Paarlahti

Video Switcher -  Automatically or manually switch the outputs from up to four cameras into one video monitor.8 pages.  Not available as a kit of parts. __ Golab.com

Video switcher -  Monitoring several cameras on one monitor is usually done in one of two ways:  divide the screen into sections and show them all at once, or time sequence the cameras onto the whole screen. __ Designed by Luhan Monat-Mesa Arizona

Video Wireless -  realtime video downlink from my RC plane __ Designed by Thomas Scherrer OZ2CPU

Video/Audio Wireless Transmitter -  To design and build a wireless transmitter that works over the FM frequency and allows the transfer of a video/audio signal over a certain distance to a FM tuner. 

Video-conversion techniques ensure a sharper image -  EDN-Design Ideas 03/13/98  Video-conversion techniques ensure a sharper image Interlaced video is still everywhere, but it fails to meet the increasing demands of viewers for high-quality.  Carefully chosen conversion techniques--for both deinterlacing and modifying the aspect ratio--result in an image of flexible size with no annoying artifacts.  __ Circuit Design by Bruce Intihar, Genesis Microchip Inc

Videos Collection -  DN57 Design Notes __ Linear Technology/Analog Devices

VideoWire -  Run camera video and camera power up to 2000 feet over ordinary four conductor telephone wire.12 pages.  Picture.  Not available as a kit of parts. __ Golab.com

VISW 8 x 4 Stereo Audio/Video Router  -  VISW 8 x4 Stereo audio/video router __ Designed by Mijo Kovacevic, S51KQ

Voltage Controlled Variable Gain Video Amplifier This is a video amplifier circuit featured with controllable variable gain.  The control is done by adjusting the voltage of grid inputs of two FETs, which are configured as programmable voltage divider.  This circuit can generate dynamic linear range attenuation up to 100 dB.  This circuit still give a linear attenuation even at f=10.7MHz.

Yield Ultralow-Noise Vga -  01/04/01 EDN-Design Ideas A number of single-chip VGAs variable-gain amplifiers are available today.  Unfortunately, they all have drawbacks, such as high noise, __ Circuit Design by Dale Ouimette, California Institute of Technology, Pasadena, CA

Zenith 12H090 AM /SW/FM45/FM100 -  vintage television (schematic)

Zenith H725Z1 Chassis 7G01Z1 -  AM/FM radio schematic vintage television (schematic)

Zenith M660 chassis 5M20 -  Communications receiver alignment info and schematic vintage television (schematic) __ Zenith

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