Vacuum Pump Plate on Aluminum Base with Rubber Seal, 10" Diameter Entomology & Zoology_Zoology Models Pole-gap geometry on this 5

Pole-gap geometry on this 5

Meker-style natural gas burner delivers a broad

sized for short-time-constant RC charging investigations and demonstrations of energy stored as half-CV-squared

Accurate to 0

this microphone amplifier connects a microphone input to both an integrated speaker and an oscilloscope-driving amplified signal for waveform study

Vacuum Pump Plate on Aluminum Base with Rubber Seal, 10" Diameter Entomology & Zoology_Zoology Models Pole-gap geometry on this 510 inch vacuum pump plate on an aluminum base with a stopcock and rubber seal, sized to accept a bell jar for atmospheric pressure and vacuum demonstrations.