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CH905ST
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.
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From $2.75 /unit
KSWITCH1
Quality switch for science projects and electronic experimentation.
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From $1.45 /unit
MSBB25
Corrosion-resistant, affordable 1" brass balls for physics experiments.
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From $7.99 /unit
Piezoelectric Earphones/Crystal Earphones
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.
Gauss Rifle (Magnetic Linear Accelerator)
High-speed steel ball launcher using magnetic chain reaction.
Simple Switch (Knife Switch) With External Posts, Spst
Quality switch for science projects and electronic experimentation.
Miniature Light Bulbs 3.8V 0.2A (Pack of 10)
E10 screw-base miniature bulbs for science projects and DIY use.