CRT Oscilloscope with color waveform.

[quicknuclearscience]

I want to make something like that but whenever i disconnect one coil the TV refuses to turn on. I was thinking about connecting it to a resistor just to put some load on it. Do you know anything about this.

[chilliqueen2007]

@quicknuclearscience I know what UR talking about. I've had a lot of people tell me the same thing. Unfortunately the only way to by pass the safety feature is to connect the second coil to a second CRT monitor to fool the circuit into thinking there is a second coil connected. But, you will need two crt monitors.

[quicknuclearscience]

@chilliqueen2007 ya that's a problem, but thanks for solving the problem.

[thebmr321]

i watched this to see it in action!!!!!!!!!

[260830107]

how do u add colour to the waves? which pins do you have to connect together?

[chilliqueen2007]

@260830107 Pin #'s 1,2,3 are Red, Green, Blue. Pin #'s 6,7,8 are Red ground,

Green ground and Blue ground. Google : "VGA monitor pinout" for more info.

I watched some of your videos. Pretty cool. Did you use a 4017 decade counter IC in your videos?

[260830107]

@chilliqueen2007 how much voltage do you need to apply to the R/G/B pins?

and nope i just used JK-flipflops and DM7490A decade/binary counter

[soosendzjin]

@260830107 VGA signals are TTL, which means 0-5 volts, where 0 to about 2 volts is a logic 0 and about 3 to 5 volts is a logic 1.