Automatic Timing Light

A Must-Have for every Toastmasters Club. Red, Yellow, and Green lights in a Solid Wood Box, with Automatic Timing Contols. Follow the instructions to build one for yourself.

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22 SYB-170

SYB-170 Soldierless Breadboard

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Posted on June 23, 2017June 23, 2017Full size 1654 × 1653Leave a comment on 22 SYB-170

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Toastmasters Automatic Timing Light
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