Materials–flashlight bulbs of the old filament type Welcome to BFSU: › Forums › Volume Two › Learning Progression āCā: PHYSICAL SCIENCE, ENGINEERING AND TECHNOLOGY › Lesson C-14. Electricity II: Parallel and Series Circuits, Short Circuits, Fuses, and Ground-Wires › Materials–flashlight bulbs of the old filament type This topic has 0 replies, 1 voice, and was last updated 5 years, 8 months ago by Bernard Nebel. Viewing 0 reply threads Author Posts May 11, 2019 at 3:20 pm #7559 Bernard NebelKeymaster Hands-on activities described in this lesson require flashlight bulbs of the old filament type. They my be purchased at: http://controlscentral.com/eCatalog/tabid/63/ProductID/463542/Default.aspx?gclid=CNqLprubzckCFZIWHwodrgsKLg Author Posts Viewing 0 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In