These were the âBlue Bladeâ type that had a blue oxide finish, and that finish, in contact with an ordinary pencil âleadâ, made a point-contact rectifier. This served the purpose of the âcrystalâ and âcats whiskerâ of early crystal radios; it permitted current coming in from the antenna to flow in only one direction.
Age restrictions: To participate in the state lottery or horse track betting you must be 18 years old. To gamble in a casino or on a video poker machine, you must be 21. Casinos and Racetracks: Riverboat casinos are legal in Louisiana.
According to rule legal age to play gambling games is Eighteen Years but you can play online casino games via proxy servers Legal gamling age is 18, as in lottery tickets and â¦ bingo, in Windsor, but you must be 19 to gamble where alcohol is served, as in casinos, because the drinking age in Ontario is 19.ccording to rule legal age to play gambling games is Eighteen Years but you can play online casino games via proxy servers Legal gamling age is 18, as in lottery tickets and â¦ bingo, in Windsor, but you must be 19 to gamble where alcohol is served, as in casinos, because the drinking age in Ontario is 19.