Low-Frequency Generator Stock Type_Build to Order preserving field strength between magnetism

preserving field strength between magnetism and field-line activities

Dial-selectable multi-tap battery eliminator delivering 1

Plastic-bodied wave apparatus with eccentric discs that drive metal rods up and down as the handle turns

deflecting visibly in the presence of a charged object to reveal both charge presence and polarity

soot-deposition

Low-Frequency Generator Stock Type_Build to Order preserving field strength between magnetismBattery or mains low frequency generator producing sine, square, and triangle waveforms from 0 to 2 kHz, in a 200x125x60mm portable case for driving LED bridges and waveform demonstrations.