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NTSC RGB VIDEO DECODER – Circuit Schematic
NTSC RGB VIDEO DECODER
An NTSC/RGB decoder is shown here. Using a TDA3330, 1-V input video is broken down into its R, G, B components, and composite synch. U1 is an integrated synch s...
HIGH PERFORMANCE VIDEO MIXER – Circuit Schematic
HIGH PERFORMANCE VIDEO MIXER
This circuit mixes H synch. V synch. and actual video. T2 mixes the synch, while T1 serves as an emitter-follower. Bandwidths of up to 25 MHz are typical for th...
FOUR INPUT VIDEO MIXER – Circuit Schematic
FOUR INPUT VIDEO MIXER
Used for combining four different positive-polarity marker pulses in radar system. -NBS, "Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, " ...
THREE INPUT VIDEO MIXER – Circuit Schematic
THREE INPUT VIDEO MIXER
Used in radar systems for combining any three of the following: radar video, beacon, range markers, range strobe, and azimuth markers. -NBS, "Handbook Preferred...
PREFERRED LOW LEVEL COMMON PLATE MIXER – Circuit Schematic
PREFERRED LOW LEVEL COMMON PLATE MIXER
Combining of video signals with pulses is accompanied by inversion of input signal. Value of R4 is 270 ohms for 5670 and 470 ohms for 6021. R2 is 680 ohms for 5...
TRIPLE INPUT VIDEO MIXER – Circuit Schematic
TRIPLE INPUT VIDEO MIXER
Each grid is biased to cutoff, so mixer accepts only positive-polarity pulses having sufficient amplitude to overcome this bias. -NBS, "Handbook Preferred Circu...
Phone to sound card Schematic – Circuit Schematic
Phone to sound card Schematic
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Receiver – Circuit Schematic
Receiver
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GPS Receiver Project Notes – Circuit Schematic
GPS Receiver Project Notes
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DIY Intercom Design Thread 5 – Circuit Schematic
DIY Intercom Design Thread 5
This time it is using the IC made by National Semiconductor the LM2662M. This is a direct replacement for the MAX1044 just it is a surface mount part (so it is ...
Simple Door Intercom – Circuit Schematic
Simple Door Intercom
This intercom circuit suitable for accompanying  door bell. This circuit uses the speakers both as microphones and as loudspeaker. This intercom is made.....
High Off Isolation Video Switch/Multiplexer – Circuit Schematic
High Off Isolation Video Switch/Multiplexer
Video switch is required to mux/multiplex several video sources, enable multiple camera to be displayed subsequently on a single monitor. This multiplexing.....
LTC1045 TTL RS-232 Converter – Circuit Schematic
LTC1045 TTL RS-232 Converter
A simple way to build a battery-powered RS-232 receiver  circuit is shown on the following schematic diagram. This circuit convert RS232 level to TTL level.....
2.5KV Isolated RS232-TTL/CMOS Converter/Driver/Receiver – Circuit Schematic
2.5KV Isolated RS232-TTL/CMOS Converter/Driver/Receiver
The ADM3251E is a transceiver which has a high speed, 2.5 kV fully isolated, single channel RS-232/V.28. This device is operates from a single 5 V power supply....
TMP01 4 to 20mA Current Loop – Circuit Schematic
TMP01 4 to 20mA Current Loop
This is a 4 mA TO 20 mA CURRENT LOOP circuit. This circuit is used to transmit  a signal over long distances. The accuracy of this circuit is not compromised.....
Long Distance Video Wire – Circuit Schematic
Long Distance Video Wire
This circuit is used to connect the camera with very log wire. This is actually a video amplifiers. This circuit consist of two part, they are sender part and.....
Long Distance Video Wire – Circuit Schematic
Long Distance Video Wire
This circuit is used to connect the camera with very log wire. This is actually a video amplifiers. This circuit consist of two part, they are sender part and.....
Video Fader Circuit – Circuit Schematic
Video Fader Circuit
Fading a video signal can`t be done simply by attenuating the composite signal, since the synchronization signal may drop below unacceptable level. Here a.....
Video Fader Circuit – Circuit Schematic
Video Fader Circuit
Fading a video signal can`t be done simply by attenuating the composite signal, since the synchronization signal may drop below unacceptable level. Here a.....
SMS controller with ATtiny2313 and T10s mobile phone – Circuit Schematic
SMS controller with ATtiny2313 and T10s mobile phone
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