Resistor Demonstration Board Geology Chrome-plated steel wire stand at

Chrome-plated steel wire stand at 5 x 5 x 5 inches supports flasks and beakers above alcohol burners for classroom chemistry demonstrations

Wear-replacement timer switch for the goggle sanitizer cabinet

Safety-plug 150mm black 4mm-stackable lead rated to 12A with shrouded contact pins

pairing a six-step 0 to 12V AC line with a continuous 0 to 12V DC line through color-coded lab terminals

Resistor Demonstration Board Geology Chrome-plated steel wire stand atDesigned to teach Ohm's law and current limiting behavior, this resistor module on a demonstration base with 4mm plug connections drops into series with bulbs and LEDs in student circuits.