stuee Posted August 15, 2005 Report Share Posted August 15, 2005 As some of you know i do my own karaoke. now i want to make something that i can plug upto 8 monitors into so they all disply what comes from the Monitor out of my laptop. I found this http://www.anatekcorp.com/driving.htm and not sure if this can be changed to go to 8 monitors. would i need to put switches on the out puts im not using if i only needed to use 5 on a booking?If someone could be kind enough to simplify this to run multiple screens or if you know a schematic im looking for i would be most happy.Thanks in advance Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 15, 2005 Report Share Posted August 15, 2005 Hi Stuee,I think the circuit is too simple to drive monitors. Its emitter-followers don't pull-up the signal, its 100 ohm resistors do but with signal loss.I built video distribution amplifiers for video conferencing systems. I used IC's developed for the application that had push-pull outputs and a gain of 2, then a 75 ohm output resistors to match the video cable/monitors. The divider action of the 75 ohm output resistor with the 75 ohm input of each monitor cut the signal back down to normal. They worked perfectly. ;D Quote Link to comment Share on other sites More sharing options...
stuee Posted August 15, 2005 Author Report Share Posted August 15, 2005 thanks for the reply, how many videos did it feed and would it be possible to get it changed to VGA monitors, would you share the schematic? Thanks again Stu Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 15, 2005 Report Share Posted August 15, 2005 Hi Stuee,My video distribution amplifier fed 6 RGB monitors. It could feed hundreds of monitors.I use Motorola triple video amplifier IC's which are obsolete now. Most semiconductor manufacturers make video or VGA distribution amplifier IC's and they are simple to use. ;D Quote Link to comment Share on other sites More sharing options...
izach Posted August 15, 2005 Report Share Posted August 15, 2005 in my day i did a little monitor repair and i made this circuit using buffers and it ran 24 monitors i look around and see if i can find the drawing somwhere in my attic failing that i maight be able to find the actuall device and rip it apart to see what i used just cant remember. Quote Link to comment Share on other sites More sharing options...
stuee Posted August 16, 2005 Author Report Share Posted August 16, 2005 Thats great thanks. any schematics are good for my level of knowhow. TaStu Quote Link to comment Share on other sites More sharing options...
izach Posted August 18, 2005 Report Share Posted August 18, 2005 hi stueei am sorry still trying to fing the damn thing give me some time i will find it here somewhere..ian Quote Link to comment Share on other sites More sharing options...
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