. QST . HIGHLIGHTS OF THE 1955 HANDBOOK: The high-frequency chapter Includes many new units incorporating suchfeatures as continuous (multiband) tuning units, pi-section tanks and clamp-tube protective circuits. material has been extensively changed toimprove clarity and take advantage of techniques developed as a resultof greater occupancy of this portion of the radio spectrum. The chapter includes equipment using tubes developed in the pastyear. The section on vacuum tubes and semiconductors has been enlargedto accommodate numerous new tubes, crystal diodes and trans
. QST . HIGHLIGHTS OF THE 1955 HANDBOOK: The high-frequency chapter Includes many new units incorporating suchfeatures as continuous (multiband) tuning units, pi-section tanks and clamp-tube protective circuits. material has been extensively changed toimprove clarity and take advantage of techniques developed as a resultof greater occupancy of this portion of the radio spectrum. The chapter includes equipment using tubes developed in the pastyear. The section on vacuum tubes and semiconductors has been enlargedto accommodate numerous new tubes, crystal diodes and transistors; acomplete listing of electrostatic cathode-ray tubes forms a part of thetube tables. The 1955 edition is packed with information useful to theamateur and professional alike! $3 USA proper $ US Possessions and Canada Buckram Bound Edition $5 Everywhere $4 Elsewhere The American Radio Relay League, inc. ^^^ West Hartford 1, Conn. 133 XMTRS FOR 160 TO 2 METERS or Special Freq. 500 KC. to 160 LETTINE MODEL 240 TRANSMITTER WITH MOBILECONNECTIONS AND POWER SUPPLY This outstanding transmitter has been acclaimed a greatperformer throughout the world. Air wound plug-in coils usedfor high efficiency. Takes any freq. from to 30 mc. Idealfor General Class, Novice, CAP, CD, Industrial. Sold directfrom our factory, ready to operate. 40 to 50 watts input,Phone-CW. Complete with 8x14x8 cabinet, 40 meter coils,xtal. tubes: 6\6 osc, 807 final, 5U4G rect., 6SJ7 xtal mikeamp., 6N7 phase inv., 2-6L6s PP mod. Wt. 30 lbs. $, 20, 10 meter coils $ per band. 160 meter coils $ 130 FOR 120 TO 130 WATTS — $ 242 FOR 2 METERS — 45 WATTS INPUT —6146 FINAL. Complete with mobile connections, powersupply, tubes, xtal. Xtal mike input. Uses 8 mc. xtals. Swing-ing link matches 52 — 300 ohm antennas. Same cab. as 240.$ Also 6 meter model. 150 WATT ANT. TUNER matches any antenna. 8x10x8cab. $ Coils extra: 160 — $, 80 — $,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
