Month: April 2023

Pretty much self-explanatory. Photo: Bengt Svensson, SMOUGV   In this issue

On the Cover “Early DeForest Audion”. In this issue

An RCA promo item from 1929 from their dealer publication “Good News” plugging the sales of replacement tubes.   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

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

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

The front cover of an RCA service-dealer magazine from the mid-Twenties, featuring the “Selling Fool” doll. Graphic: Joe Knight   In this issue

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

Part of a fine collection of developmental metal tubes. See inside for more details Photos: Bob Millard.   In this issue

On the Cover George A. Fathauer’s new book. See p. 6 for details In this issue