hey guys, i ran this applet off of
http://www.cs.york.ac.uk/netpro/bboard/jbreadboard.html
anyhow this is my problem
I wanted to create a simple and gate using the SN7408J chip.
I initially set up my circuit as shown below,
(you might have to click on the image again, when the new tab opens up to see it in better quality)
this was supposed to be my 00-LEDoff circuit because the two switches are set to off and 0 represents off. however the LED lights up! Its an AND gate so its supposed to light up when both switches are turned on. I hope u guys got my problem.
This is what my 01-LEDoff circuit looked like (it also shows what pin does what)
This is what my 10-LEDoff circuit looked like
and this is supposed to the 11-LEDon circuit, but it doesn't light up!
thnx 4 ur time
http://www.cs.york.ac.uk/netpro/bboard/jbreadboard.html
anyhow this is my problem
I wanted to create a simple and gate using the SN7408J chip.
I initially set up my circuit as shown below,
(you might have to click on the image again, when the new tab opens up to see it in better quality)
this was supposed to be my 00-LEDoff circuit because the two switches are set to off and 0 represents off. however the LED lights up! Its an AND gate so its supposed to light up when both switches are turned on. I hope u guys got my problem.
This is what my 01-LEDoff circuit looked like (it also shows what pin does what)
This is what my 10-LEDoff circuit looked like
and this is supposed to the 11-LEDon circuit, but it doesn't light up!
thnx 4 ur time