01:12, 30 September 2013CarminPolitanotalkcontribs uploaded File:TWO RELAY SINGLE INPUT flip-flop.5.png (From em practical electronics http://www.emil.matei.ro/onof2.php which declares source as "old book". This very simple, very old design surely predates the relay itself, if not Boolean himself. em practical electrics sited "old book" as fair enough t...)
01:12, 30 September 2013CarminPolitanotalkcontribs uploaded File:TWO RELAY SINGLE INPUT flip-flop.4.png (From em practical electronics http://www.emil.matei.ro/onof2.php which declares source as "old book". This very simple, very old design surely predates the relay itself, if not Boolean himself. em practical electrics sited "old book" as fair enough t...)
01:11, 30 September 2013CarminPolitanotalkcontribs uploaded File:TWO RELAY SINGLE INPUT flip-flop.3.png (From em practical electronics http://www.emil.matei.ro/onof2.php which declares source as "old book". This very simple, very old design surely predates the relay itself, if not Boolean himself. em practical electrics sited "old book" as fair enough t...)
01:11, 30 September 2013CarminPolitanotalkcontribs uploaded File:TWO RELAY SINGLE INPUT flip-flop.2.png (From em practical electronics http://www.emil.matei.ro/onof2.php which declares source as "old book". This very simple, very old design surely predates the relay itself, if not Boolean himself. em practical electrics sited "old book" as fair enough t...)
01:10, 30 September 2013CarminPolitanotalkcontribs uploaded File:TWO RELAY SINGLE INPUT flip-flop.1.png (From em practical electronics http://www.emil.matei.ro/onof2.php which declares source as "old book". This very simple, very old design surely predates the relay itself, if not Boolean himself. em practical electrics sited "old book" as fair enough t...)
01:07, 30 September 2013CarminPolitanotalkcontribs uploaded File:TWO RELAY SINGLE INPUT flip-flop.0.png (From em practical electronics <ref>http://www.emil.matei.ro/onof2.php</ref> which declares source as "old book". This very simple, very old design probably predates the relay itself, if not predates the days of Boolean himself. em practical electrics...)