4.75" St. Louis Motor Demonstration Apparatus Handle Type_Wood this lamp holder provides connection

this lamp holder provides connection terminals for fast wiring into series and parallel student-built circuits

and 0-50 psi / 0-3

these aluminum 4-inch overflow cans come in pairs for paired-station Archimedes-principle and density investigations

clamping to bench edges for pulley experiments that need a fixed overhang off the worktop

Two variable 0 to 6V DC outputs paired with two fixed 6V/10W and 12V/20W AC outputs on this power supply controller

4.75" St. Louis Motor Demonstration Apparatus Handle Type_Wood this lamp holder provides connectionExposes every moving part of a two pole armature rotating between permanent magnets on an open 4 inch plastic base, running on 3 6V DC to illustrate both motor and generator operation.