Transcription of Courtesy 1927 ARRL Handbook - Tube Collectors
1 Courtesy 1927 arrl Handbook
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Courtesy 1927 ARRL Handbook - Tube Collectors
Courtesy 1927 arrl Handbook
Courtesy 1927 ARRL Handbook. BUILDING on the mercury pool and the inductance for keeping the tube operating stably will be most of interest to Handbook readers. The "keep-alive" circuit is necessary for A STATION 79 somewhat above the mercury pools to pro- tect the glass. Use light gas engine oil of
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