US$ 15.00
Polystyrene electrolyzer with a transparent cone-shaped cup over a banana-socket base
knee and curtain airbags
supplied with keepers in a cardboard storage box for routine classroom work on field lines
1100-turn copper coil on a bobbin sized for a double C-core
iron filings
Resistance Unit, Classroom Grade archive-pending Polystyrene electrolyzer with a transparentFive ohm metal film resistance unit at plus or minus 1% accuracy with a 1. 6V maximum rating, the standard low end Ohm's law value used in current limiting and voltage divider work.