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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A letter may be attached to designate water cooling no letter designates a radiation cooled device.
Collection of Jacky Parmentier F. Most of these are special quality versions of the equivalents given.
ECC85 Datasheet PDF
Receiving Tube Manual RC21p. Older Mullard tubes were mostly designated PMfollowed by a number containing the filament voltage. Collection datsheet Ottmar Rollmann D.
Collection of Bekir Yurdakul F. Many industrial, military or otherwise professional tubes were also produced. Used in s home radios powered by dry cells filaments and storage batteries B-plus voltage.
Various numeral-only systems exist. Retrieved 17 October Devices in the low s tend to be transmitter output types, those in the higher s are not vacuum tubes, but gas-filled rectifiers and thyratronsand those in the s tend to be special-purpose and high-frequency devices. Use was not rigorously systematic: 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.
This usually implies construction differences, not just selection from regular quality production. 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 changing the voltage on the third grid, in early computer circuits similar in function to the U.
Collection of Karlheinz Fischer D.
Stock/Availability for: ECC85/6H1P/6N1P
Retrieved 19 August Media related to Lamina vacuum tubes at Wikimedia Commons. Other compound numbering systems were used to mark higher-reliability types used in industrial or commercial applications. You will find thousands of tubes or valves with interesting links. Collection of Georges Werts B.
TDSL Tube data [ECC85]
Media related to Philips vacuum tubes at Wikimedia Commons. Wynn-Williams 2 May Telefunken Laborbuch in German.
Receiving Tube Manual RC30p. The oldest numbering systems date back to the early s, such as a two-digit numbering system, starting with the UVAwhich was considered as “type 01”, and extended almost continuously up into the s. Vacuum tubes which had special qualities French: A few special-quality tubes did not have a standard equivalent, e. The Tungsram system was composed of a maximum of three letters and three or four digits.
ECC85 Datasheet PDF ( Pinout ) – Steile HF Doppeltriode
Collection of Peter Olasz H. List of vacuum tubes List of tube sockets. This numbering scheme was intended to differentiate these tubes from the tubes with 2.
Collection of Ekkehard Pfau D. Text in other languages may differ. Three- and four-digit numeral-only systems were maintained by R.
Antique radios, Old Time Radios.