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.
Harrah's New Orleans - Age Requirements. Harrah's New Orleans - Age Requirements. The State of Louisiana Gaming Commissionrequires that all guests must be 21 years of age and provide a current, valid, photo identification to enter the casino. This is true for customers wishing only to eat in our restaurants, buffet or our theatre as well.