as a guide only – please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. ECC85 Ratings. Page 1. Page 2. Page 3. ECC85 Datasheet PDF Download – Double Triode, ECC85 data sheet.
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Retrieved 4 November Media related to Lamina gas discharge tubes at Wikimedia Commons. The fourth element denotes the type of envelope. The first system was introduced in Retrieved 1 January These tubes had metal particles sprayed onto the glass envelope, copying a design common to European tubes of the time.
Receiving Tube Manual RC30p. Often designations that differed only in their initial numerals would be identical except for heater characteristics.
Institute of Radio Engineers. Collection of Bekir Yurdakul F. British General Electric Company:. Das ist als Anlage hier zu lesen. Collection of Karlheinz Fischer D.
The E91H is a special heptode with a passivated third grid designed to reduce secondary emission; this device was used as a “gate”, allowing or blocking pulses applied to the first, control grid by ecc58 the voltage on the third grid, in early computer circuits similar in function to the U. Some confusion has been created in transliterating these designations to Latin.
Collection of Aldo Patriarca CH. From Wikipedia, the free encyclopedia.
The numbers following these prefixes can be “special” four-digit numbers, or domestic two- or three-digit numbers or simply the domestic North American “RETMA” numbering system. Collection of Reinhard Riek D.
Stock/Availability for: ECC85/6H1P/6N1P
Raytheon Company components division, industrial components operation. The Majestic numbers of these tube types, which are usually etched on the tube’s base, have a “G” prefix for G rigsby- Dtasheet runow and an “S” suffix for s hielded. Other compound numbering systems were used to mark higher-reliability types used in industrial or commercial applications. Replacement versions from other manufacturers, such as Sylvania or General Electrictend to incorporate the less expensive, form-fitting Goat brand shields that are cemented to the glass envelope.
Retrieved 21 December Media related to Tungsram vacuum tubes at Wikimedia Commons. The following letter indicates the photocathode type:. Quantity of Models at Radiomuseum. The first incarnation of La Compagnie des Lampes produced the TM tube since and defined one of the first French systems;   not to be confused with Compagnie des Lampesdatashheet Mazda”, see below. Receiving Tube Manual RC25p.
Media related to Mullard vacuum datasheer at Wikimedia Commons.
The letters “CC” indicated the two triodes and the “F”, the single pentode inside these types. Collection of Emilio Focosi I. Grigsby-Grunow did not shield rectifier tubes except for type 6Y5 listed below or power output tubes. Collection of Marco Lagendijk NL.
Retrieved 17 April Fortschritte der Funktechnik in German. Grammont and Compagnie dwtasheet Lampes It consisted of one or two letters designating system type andoptionally, type of cathodea hyphen, then a sequentially assigned number with up to 3 digits. Retrieved 25 April The numbers identify special-quality valves though SQ valves CV numbered before that rule came in retain their original CV number. Retrieved 9 Feb