. QST . COLLINS 31V-3 AMATEUR TRANSMITTER A receiver-sized high-performance rig builtto Collins standards in every detail. Ratedat 150 watts input CW, 120 watts phone,gang-tuned with bandswitching to cover80, 40, 20, 15, 11, and 10 meter audio gives extraordinary goodreadability. Stable VFO, completely en-closed R-F section and thorough filteringand shielding provide maximum protectionagainst TVI. Complete with S7TCtubes 113. HARVEY is Icnown the world wherever Hams as a reliablesource for Ham Equipment . . assuring fast service and prompt deliveries. S Harve
. QST . COLLINS 31V-3 AMATEUR TRANSMITTER A receiver-sized high-performance rig builtto Collins standards in every detail. Ratedat 150 watts input CW, 120 watts phone,gang-tuned with bandswitching to cover80, 40, 20, 15, 11, and 10 meter audio gives extraordinary goodreadability. Stable VFO, completely en-closed R-F section and thorough filteringand shielding provide maximum protectionagainst TVI. Complete with S7TCtubes 113. HARVEY is Icnown the world wherever Hams as a reliablesource for Ham Equipment . . assuring fast service and prompt deliveries. S Harvey RADIO CO., INC. 103 (l St., New York 36. 2-1500 Established 1927 115 For 1955/ The DOW-KEY CO. now offers a silent open typeAC power relay. The only .AC power relay with a written guaranteecoxering silent operation. These midget relays, witha rating of 25 amps, set a new standard. Xersatiledesign provides 5 possible mounting positions. Avail-able in all voltages both .-XC and DC. The popular DOW coaxial line has the new look for 55! The service we promised to consumer and dealer isnow axailable with enlargement and tooling programrecently completed. Complete information is in our new catalogand free by request — send for your copytoday. Only DOW guarantees silent AC relays. Its theprinciple of the thing. Territories in both Canada and USAopen for established factory reps. THE DOW-KEY CO., INC. WARREN, MINNESOTA
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
