Antique radios, Old Time Radios
BL-509
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Country:
United States of America (USA)
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| Identical to |
BL-509
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| Filament |
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| Description |
Complete x-band duplexer with two hybrid junctions and integral shutter. 28Vdc shutter operating voltage.
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| Information source |
-- Original prospect or advert Electronics, September 1954, pg. 289
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