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#12
August 8th 08, 12:26 AM
posted to rec.radio.amateur.antenna
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Fluorescent light RFI solved
"Jim Lux" wrote in message ... snip Where the term "ballast" came from, I don't know. Possibly from the meaning "imparting stability." A ship's or boat's ballast does that. Ballast around railroad ties does that. Ballast in a hot air balloon does that. A ballast tube in the filament circuit of a certain radio of my acquaintance, the R-390A/URR, stabilizes the filament current for two oscillator tubes, the VFO and the BFO. |
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