Antique radios, Old Time Radios
4A-21
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Country:
United States of America (USA)
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| Identical to |
4A-21
= 4A21_Ballast
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| Description |
used in 110V AC Sets w/70-90V Pri. Transformer.
See 4A21_Ballast.
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| Information source |
Ballast Tube Handbook, The
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4A-21
Emilio Ciardiello
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