This tube is the fore-runner of the UY224 and was made by a few manufacturers such as Arcturus (122AC), Ceco and Eveready Raytheon AC22, Sonatron, Songbird (made for Montgomery Ward) and Sylvania 222AC. These tubes were available for only a very few months - April to July, in 1929, when the type number was discontinued for these.
Abmessungen (BHT) inkl. Stifte/Spitzli
x 123 x 45 mm / x 4.84 x 1.77 inch
Gewicht
50 g / 1.76 oz
Literatur
- - Manufacturers Literature
-- Collector info (Sammler)
