Month: April 2023

A continuous oven for baking-out TV picture tubes before exhausting, sealing-off, and getter-firing, at the Fabbrica Italiana Valvole Radio-Elettriche (FIVRE), ca 1957. Photo: Giuseppe Vulpetti.   In this issue

A classically styled promotion poster for the Italian tube maker Zenith, with Factory located in Monza. Beginning about 1929, it made a line of European and American- designed receiving tubes. The original art is 10″ by 15-1/2″. It has been reproduced as a lithograph on steel and in a book on old-time posters.   In...

On the Cover Eimac X-159 developmental duel Triode. In this issue

On the Cover Svetlana Engineer wins AWA Tyne award. See p. 1 In this issue

On the Cover Japanese U233 radar transmitting triode from WW 11. In this issue

“Dan’s Used Curve-Tracer Lot” -Daniel Schoo, perhaps better known for herioc radio restorations in the pages of Antique Radio Classified, now appears in our pages with a feature on adapting tracers intended for solid-state devices to use with tubes. Photo: Daniel Schoo.   In this issue

Inspired by February’s “Tunggram Radio” ad, Abel Santoro senrt in this advertisement, clearly from the Hungarian arm of the company, for tungsram-filament light emitting monodes.   In this issue

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

Cover illustration from a ’30s Marconi Valves data booklet.   In this issue

On the Cover Bob Reidmuller’s $3 (!) Audion display In this issue