Buzzer Demonstration Board with 4mm Terminals Mechanics_Force & Motion sized for visible-time-scale RC charging

sized for visible-time-scale RC charging and capacitor-driven momentary lamp-flash experiments

5-inch inner-diameter end tubes

Three-part skull model features painted muscle attachments and numbered details for cranial anatomy and muscle origin-insertion teaching

5x clear views through a 3-inch optical-glass lens with a 6-inch focal length

Buzzer Demonstration Board with 4mm Terminals Mechanics_Force & Motion sized for visible-time-scale RC chargingUsed to give student built circuits an audible signal of completion, this low current 2mA buzzer on a demonstration base sounds whenever current flows through the closed circuit.