Simple to build kit creates a tone which varies depending on the amount of light you allow to strike on a CDS cell. Kit
features IC circuitry and small speaker to create this unusual effect. In total darkness the unit is silent; as light
increases the kit emits clicking sound then with more light a continuous tone. Operates from one 9V battery (not included).
Size of board: 1 1/4” x 1”.
Complete with all parts, PC board and instructions. Skill Level 1.
| Stock # | C4164 |
| Price | $5.25 |
