I have several different variations of the Science Fair 200 in one sets and this one was an earlier one. It’s nice because all components are on the board and just the earphone and wires are the only loose parts. The experiments are very interesting. If any of the parts fail they are easy to replace. This unit has some corrosion in the battery compartment but was easy to clean up. The only item burned out was one lLED which someone probably hooked power to it without a resistor in line to protect the LED. No problem replacing it. Any of the Radio Shack Science Fair sets are good to learn electronics or if you have a working knowledge of electronics these are good to experiment with circuits you might want to commit to a PCB board.
Verified purchase: Yes | Condition: Pre-owned
Good vintage item
Verified purchase: Yes | Condition: Pre-owned
Better than tap dancing
Verified purchase: Yes | Condition: Pre-owned