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.
Guests must be 18 years of age or older to play the tables and the slot machines. Guests under 18 years of age are not permitted in the casino. Guests must be 18 years of age to purchase a bingo card and play. Guests must be 21 years of age or older to be in the âSerenityâ adults-only area.