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joe veras © 2002 |
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National SW-4 The National Company sold a series of regenerative sets before moving on to superhet communications receivers. The four-tube SW-4 was among the company's 1929 offerings. |
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joe veras © 2002 |
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National SW-4 The National Company sold a series of regenerative sets before moving on to superhet communications receivers. The four-tube SW-4 was among the company's 1929 offerings. |
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