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A 4047 is made by most semiconductor IC manufacturers. Their prefix isn't all "CA". Motorola (now called ON Semi) call theirs an MC14047B. All newer ones have "B" as a suffix which means the outputs are buffered. Some manufacturers use uA as a prefix and call it a uA4047B. Texas Instruments used to call theirs an SN4047B.

I just looked. Toshiba doesn't make it.

Rhonn is in The Philippines. He helped me fix the original faulty project. His e-mail address is on our corrected schematic.

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