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### Topic: Logic gates without transistors? (Read 4545 times)previous topic - next topic

#### majenko

#15
##### Mar 24, 2013, 12:56 pm

if 4 or 5 is low, then current is sinked thus logic = low

if both are high then current sinks though 1, thus logic = high

That diagram reminds me of the logic gates used in the Apollo Guidance Computer.....

Houston, we have AND problem...

#### Runaway Pancake

#16
##### Mar 24, 2013, 02:20 pm

Houston, we have AND problem...

Just for that, you go do another lap around the Moon.
"Who is like unto the beast? who is able to make war with him?"
When all else fails, check your wiring!

#### majenko

#17
##### Mar 24, 2013, 02:38 pm

Houston, we have AND problem...

Just for that, you go do another lap around the Moon.

Hey - I am the centre of the universe.  The Moon does laps around Me!

#### afremont

#18
##### Mar 24, 2013, 08:52 pm

Houston, we have AND problem...

Just for that, you go do another lap around the Moon.

Hey - I am the centre of the universe.  The Moon does laps around Me!

The universe is rotating?  Reference?
Experience, it's what you get when you were expecting something else.

#### cjdelphi

#19
##### Mar 25, 2013, 04:33 pm

Houston, we have AND problem...

Just for that, you go do another lap around the Moon.

Hey - I am the centre of the universe.  The Moon does laps around Me!

The universe is rotating?  Reference?

What if the universe is just a bubble a 5 year old is blowing just waiting to get big enough to BOOOOOOOOM.......

#20
##### Mar 25, 2013, 11:23 pm
Time to close this silliness down ...
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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