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Aviation History
1951
1951 - 0434.PDF
FLIGHT 2 MARCH 1951 One Aerial. feeding Ten Plessey PV14 H.F. Multicoupler With the Plessey PV14 H.F. Multicoupler Amplifier, ten receivers can be operated from a common aerial, without loss of strength or any cross modulation effect. The set comprises an amplifier, preceded by a high pass filter attenuating incoming signals below 2 Mc/s, which feeds ten cathode follower stages designed to work into 75 ohms unbalanced loads. Here are some performance details: • Amplifier handles signals up to 500 mV with- out overloading. The discrimination against cross-talk is at least 40 dB. • Noise factor is kept at a minimum. • Mains consumption approximately 130 watts. • Can take 110V, 60 c.p.s. supplies as well as standard 200-250V, 50 c.p.s. • Frequency range 2-20 Mc/s—weight 40 lbs. • Size 7 x 19 x 9 inches, suitable for mounting in an international rack-and-panel assembly. Plessey THE PLESSEY COMPANY LIMITED • ILFORD • ESSEX The HIGHEST SPEED Riveting System for the -HIGHEST SPEELh Atlantic Aircraft! The CHOBERT systa* of blind riveting is used in the construction of the record-breaking CANBERRA "PIP" PINS, the quick release positive fasteners, have also been supplied. Approved for Use on Aircraft S.D.N. Approval 205 AVIATION DEVELOPMENTS LTD. KINGSBOURNE HOUSE, 229/231 HIGH HOLBORN. LONDON, W.C.I Tel.: CHAncery 8601 (8 lines) ENGINEERS NEEDED IN THE UNITED STATES FOR WORK ON HELICOPTERS PROPULSION DEVICES Numerous vacancies for qualified men in all phases of research, develop- ment, and design of Helicopters, Ram-jet engines, and turbojet re- heat units (afterburners). Top starting pay . . . rapid advance- ment based on individual merit . . . liberal employee benefits . . . bonus for extended work week. Send complete resume of training and experience to:— MCDONNELL AIRCRAFT CORPORATION P.O. BOX SI6 ST. LOUIS, (3), MISSOURI, U.S.A.
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