Basic logic gates using relays.
I have created a logic that can be used in this Every circuit using relays.
In a relay circuit, the polarity of the voltage does not matter; it is 0/1 depending on whether current is flowing or not.
In other words, it is possible to create a NOT or EXOR circuit without using a single relay.
I flashed the lamp because of the extra space in the lower right corner.
Basic Flip-Flop
http://everycircuit.com/circuit/6689774882258944