Simple to build kit uses a programmable unijunction transistor (PUT) to flash a jumbo red LED. Makes a great first kit and is useful for all types of convention badges posters attention getters hats model railroads model planes etc.
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Simple to build kit uses a programmable unijunction transistor (PUT) to flash a jumbo red LED. Makes a great first kit and is useful for all types of convention badges posters attention getters hats model railroads model planes etc.
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