SCIENTIFIC-ELECTRIC BELL -- Electric Bell / Buzzer / Telegraph Key Constructions kit -- US$20.00
 
The objective of building the electric bell is to understand the nature of Electro-magnetism. The kit is changeable into three constructions: Electric Bell, Buzzer, and Telegraph Key. Instructions are included. Made in Japan by Daiwa Scientific and Educational.
SCIENTIFIC-MOTOR -- DC Motor Constructions kit -- US$20.00
 
The objective of the kit is to understand the difference between the permanent magnet and the electro-magnet, and also learn the principles of electric motors. Instructions are included. Made in Japan by Daiwa Scientific and Educational.
SCIENTIFIC-PRACTICAL BELL -- Practical Bell Constructions kit -- US$25.00
 
The objective of the kit is to perform Electro-magnetic experiment and mechanisms of the bell. The bell can be used as a housebell. Instructions are included. Made in Japan by Daiwa Scientific and Educational.
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