Vintage Heathkit Assembly Manual HD-1234 Coaxial Switch Original 1973

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Original Heathkit Assembly Manual for HD-1234 Coaxial Switch

HD-1234 Coaxial Switch Health Kit Assembly Manual

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Original Heathkit Assembly Manual for HD-1234 Coaxial Switch (see Pictures)

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Vintage Heathkit Assembly Manual HD-1234 Coaxial Switch Original 1973