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.

Author: Meztijora Tomuro
Country: Italy
Language: English (Spanish)
Genre: Travel
Published (Last): 2 July 2018
Pages: 454
PDF File Size: 7.79 Mb
ePub File Size: 4.24 Mb
ISBN: 597-8-39976-724-5
Downloads: 53366
Price: Free* [*Free Regsitration Required]
Uploader: Faegar

ECC85 Datasheet PDF – Philips

This system is very descriptive of what type of device triode, diode, pentode etc. Collection of Giorgio Busletta I. Retrieved May 30, Collection of Tomasz Szczesniak PL.

The next elements varies in interpretation. Retrieved 5 October Collection of Franco Antolini I.

Confusingly, the British also had two entirely different “VT” nomenclatures, one used by the Royal Air Force see the preceding section and the other used by the General Post Officeresponsible for post and telecommunications at the time, where it may have stood for “valve, telephone”; none of these schemes corresponded in any way with each other. Media related to Soviet gas discharge tubes at Wikimedia Commons.

ECC85 Datasheet

Media related to Philips vacuum tubes at Wikimedia Commons. Collection of Ottmar Rollmann D. The following letter indicates the photocathode type:. Quantity of Models at Radiomuseum.


Collection of Hermann Fleischanderl A. Retrieved 9 February You will find thousands of tubes or valves with interesting links.

(PDF) ECC85 Datasheet PDF Download – Double Triode

Media related to Valvo vacuum tubes at Wikimedia Commons. Grigsby-Grunow did not shield rectifier tubes except for type 6Y5 listed below or power output tubes.

Receiving Tube Manual RC25p. A letter may be attached to designate water cooling no letter designates a radiation cooled device. Retrieved 4 November Most post-war European thermionic valve vacuum tube manufacturers have used the Mullard—Philips tube designation naming scheme.

By using this site, you agree to the Terms of Use and Privacy Policy. Die Abschirmwirkung des Schirms zwischen den Anoden. It was phased out after when Valvo adopted the Mullard—Philips scheme. Media related to Tungsram vacuum tubes at Wikimedia Commons.

ECC85 Datasheet Philips pdf data sheet FREE from

Note that elevating the cathode voltage above the average heater voltage, which in well-designed equipment was supplied from a transformer with an earthed center-tapped secondary, was less detrimental to the oxide insulation between heater and cathode than lowering the cathode voltage below the heater voltage, helping to prevent pyrometallurgical electrolytic chemical reactions where the oxide touched the nickel cathode that could form conductive aluminium tungstate and which could ultimately develop into a heater-cathode short-circuit.


Computers and telecommunication equipment also required tubes of greater quality and reliability than for domestic and consumer equipment. All have glass bodies that measure from 0. JIS C was published in and modified in and [31].

Special quality variants may have the letters “SQ” appended, or the device description letters may be swapped with the numerals e. If two devices share the same type designation other than the first letter e. Retrieved 15 June My own collection Hannu Alho. The E91H is a special heptode with a passivated third grid designed to reduce secondary emission; edc85 device was used satasheet 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.