Category: Magazines

On the Cover George Fathauer makes a tubish point at the TCA meeting at Rochester In this issue

A stach of rare Philco-branded “export” tubes as recently found in Canada. See the story on page 2.   In this issue

The Philips TBL6-4000 air-colled triode for industrial RF heaters, rated for continuous dissipation of 1.3 kW. Its “EIA identity is 7753, as registered by Amperex in 1960. From J. Haanjes and H. Carter, Classificatio of Electron Tubes, 2nd edition (New York, Macmillan, 1962), courtesy Bro. Patrick Dowd.   In this issue

Udo Radtke, “power-collector,” with his YK-1001 klystron (for UHF television, 10 kilowatts) in an elegantly welded-up display stand. For a fine cutaway image of this 180- pound tube, complete with its resonant cavities, see www.tubecollection.de/ura/YK-1001.htm. “He who dies with the biggest tube wins.” Photo: Udo Radtke.   In this issue

A fine old WECo (pre Bell Labs) shot of a “tennis-ball” repeater tube. Source: Jerry Vanicek.   In this issue

Even the family cat likes Philips-Mullard tubes! Brochure from Sibley Collection.   In this issue

An Eimac 8351/4CV100,000 vapor-cooled tetrode, of the type used in one of the Collins 250-kW transmitters, now removed, at the Voice of America transmitting site outside Delano, California. It is accompanied by its much smaller vcousin, a mere 4-1000.   In this issue