60-In-One Block-Type (280-0147) Battery Faxback Doc. # 15471 Electronic Lab The kit is powered by four AA batteries (not supplied). We recommend alkaline batteries, such as Radio Shack Cat. No. 23-552. Important: For your safety, this kit's only power source is the batteries. NEVER PLUG THE ANTENNA WIRE, TEST, OR EARPHONE PADDLE LEADS INTO AN AC OUTLET OR TRY TO POWER THE KIT FROM AN AC OUTLET. This is extremely dangerous and can cause electric shock. Follow these steps to install batteries in the kit. 1. Remove the battery compartment cover on the back of the kit by sliding it in the direction of the arrow. 2. Install four AA batteries, following the polarity symbols (+ and -) marked inside the compartment. WARNING: Be sure to load the batteries correctly. Loading them incorrectly could damage the kit's built-in IC amplifier. 3. Replace the battery compartment cover. Battery Tips If you will not use the kit for a long time, remove the batteries before you store it. If the kit does not operate properly, replace all four batteries. Always replace old or weak batteries. They can leak chemicals that can damage the kit. (ALL-06/01/95)