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.
Underage gambling: It is unlawful for anyone under the age of 21 to play video poker devices or to gamble in a casino. It is unlawful for anyone under the age of 18 to participate in the state lottery or in horse track betting. Violations result in a fine of $500 and/or up to six months imprisonment.