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First picture of the Moorhead Electron Relay

Jacob Roschy Martin Renz Ernst Erb Bernhard Nagel Eilert Menke 
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Forum » Valves / tubes - Semiconductors » VALVES/TUBES / SEMICONDUCTORS in RADIOMUSEUM » First picture of the Moorhead Electron Relay
Alan Larsen
Alan Larsen
USA  Articles: 32
Schem.: 47
Pict.: 21986
25.Oct.14 21:11

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The August 1916, issue of The Electrical Experimenter magazine was the first advertisement to offer a picture of the 1916 Moorhead Electron Relay. As noted in the advertisement, the tube was available with either a single filament or a double filament for $1.50 more.

At this time Moorhead was advertising under the name of Pacific Laboratories.


This article was edited 25.Oct.14 22:53 by Alan Larsen .