oskay:
Digi-Key, detail
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Jameco (page 1), detail
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Jameco (page 2), detail
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Edmund Scientific, detail
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Poly-Paks, detail
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Radio Shack, detail
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Digi-Key
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Popular Electronics, July 1976
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Edmund Scientific
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Radios Hack
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Jameco (page 1)
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Jameco (page 2)
oskay:
Poly-Paks