Simple, hardwood comprising, cut-away base to allow cord to hang freely and hinged plane 60 x 7.5 cm. with aluminium pulley 28 mm. diameter, and stepp...
Demonstration Induction Coils consists of two coils wound on separate bobbins, one having many turns of fine wire & the other with few turns of heavy ...
For use with interscale demonstration meters. Each dial comprises a laminated plastic panel with sealed moulded box at one end which contains the shun...