. QST . ratorearmarked for the HHRL Field Day activity. The recentbanc|uet held by the RVWARS was well attended and theFB talk given by Vern Chambers, of ARRL, was enjoyedby all. Traffic: (Jan.) K2BJS 512, W2CFU 30, K2HVN 19,W2ANB 14, K2EHI 12, W2APH 4. (Dec.) K2BSD 313,BJS 147, BE 76. (Nov.) K2BJS 187. NEW YORK CITY AND LONG ISLAND —SCM, Carleton L. Coleman, W2YBT — Asst. SCM: Harry J. Dannals, 2TUK. SEC: ZAI, PAM: JZX. RMa: VNJ and LPJ. ZAI reports AREC membership has increased in {CojitinHcd on page 90) 88 Whats New with the Electron? Latest power tube developments displayed by Eimac at ann
. QST . ratorearmarked for the HHRL Field Day activity. The recentbanc|uet held by the RVWARS was well attended and theFB talk given by Vern Chambers, of ARRL, was enjoyedby all. Traffic: (Jan.) K2BJS 512, W2CFU 30, K2HVN 19,W2ANB 14, K2EHI 12, W2APH 4. (Dec.) K2BSD 313,BJS 147, BE 76. (Nov.) K2BJS 187. NEW YORK CITY AND LONG ISLAND —SCM, Carleton L. Coleman, W2YBT — Asst. SCM: Harry J. Dannals, 2TUK. SEC: ZAI, PAM: JZX. RMa: VNJ and LPJ. ZAI reports AREC membership has increased in {CojitinHcd on page 90) 88 Whats New with the Electron? Latest power tube developments displayed by Eimac at annual show New and improved klystron, ceramicand negative grid tubes highlighted theEimac display at the annual Instituteof Radio Engineers show and conven-tion in New York City, March power Eimac amplifier kly-strons range in frequency from 225-SOOOmc and 5500-7500mc and vary inCW power output from 50 watts to50kw. Application-proved Eimac ampli-fier klystrons such as type 3K50,000L,. High power Eimac amplifier klystron delivering lOkw/CW power outputat 400-1050mc, make possible highpower previously limited to VHP andlower frequencies. These amplifier kly-strons are of ceramic and copper con-struction and, although larger thannegative grid tubes, are easily thelightest and least complicated of anyklystrons intended for similar , rugged Eimac reflex klystronsare designed for local oscillator use ashigh as 9600mc in airborne environ-ments. Sharing the spotlight with klystronswere the latest in Eimac ceramic tubedevelopments. Ceramic replaces glass inthese tubes, giving a greater immunityto thermal and physical shock, plusallowing revolutionary constructiontechniques. In production, the ceramicand electrode parts are placed one ontop of the other, similar to stacking
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
