Description
3 geometry stretching focal throw for distant-screen projection of well-formed real images
metamorphic
Zinc-plated rectangular steel bar-magnet pair packaged with keepers that bridge the poles in storage
Non-flammable adjustable face shield with crown strap protects the full face from splashes
Physics Demonstration Microphone Type_Abacus 3 geometry stretching focal throwPiezoelectric crystal microphone covering 60 10,000Hz with a 1. 4m screened lead, terminals, and jack plug, ready to drop into oscilloscope and signal analysis investigations of sound.
Exchange/Return Notes
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