EF86 DATA SHEET PDF

given as a guide only – please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. EF86 Ratings. TECHNICAL DATA. Characteristics of a bogey tube: Electrical. Heater Voltage ( AC or DC) in Volts. +/ Heater Current in mA. +/- 10%. Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8.

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From Wikipedia, the free encyclopedia.

Collection of Karlheinz Fischer D. For the EF86 under normal conditions, I.

EF86 @ The Valve Museum

By using this site, you agree to the Terms of Use and Privacy Policy. In other projects Wikimedia Commons. Collection of Georges Werts B. Collection of Ralf Meinke D. Its design is low noise and anti-microphonic. RTT Franzis Collection of Reinhard Riek D. The low-frequency noise generated by a cata is most conveniently specified as an equivalent voltage on the sata grid for a specific bandwidth.

Care in the design of the valve to ensure that the electrode er86 and its mounting are as rigid as possible has reduced the microphony of the EF86 to a very low level.

In use it is recommended that it is fitted into a vibration resistant base. Unlike many pentodes it was designed specifically for audio applications, low noise and low microphony being claimed advantages, although a rubber-mounted vibration-resistant base was still recommended.

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Type EF86 was first introduced in You even can look up radio models with a certain tube line up. Erb Analysis by original leaflets.

Under these conditions the maximum hum level is 1. Quantity of Models at Radiomuseum.

It was first shown at the Radio Show and first used in their amplifier from The rarely used EF83 is a remote-cutoff pentode [4] otherwise similar to the EF86; the remote cutoff variable mu makes it suitable for applications such as automatic gain control agc in tape recorders.

Collection JR Jacob Roschy. Collection of Daniel Consales D. Collection of Jacky Parmentier F. You will find thousands of tubes or valves with interesting links. This has a synthetic rubber mount. Warning the PDF file is 3. In high gain applications such as tape recording care should be taken in siting the valve, particularly when a loudspeaker is present in the same cabinet or where a motor is mounted on the same chassis. The EF86 was used in many preamplifier designs during the last decades of vacuum tube hi-fi development.

At higher frequencies the effect of vibration is usually negligible on account of the damping provided by the chassis and the valve holder. The full Mullard data sheet is available by clicking the valve name at the top of the page.

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(PDF) EF86 Datasheet download

Before the advent of the EF86 the Mullard valve of choice for pre-amplifier stages was the EF37A Mullard describe the EF86 as a low noise pentode intended for use as a RC coupled AF voltage amplifier, particularly in the early stages of high gain audio amplifiers, microphone pre-amplifiers and magnetic tape recorders.

An industrial variant of the tube is known as This exhibit was made by Mullard who designed the EF Collection of Patrice Zeissloff F. This electronics-related article is a stub.

Collection of Marco Lagendijk NL. Vacuum tubes Guitar amplification tubes Electronics stubs. This can be further reduced by centre tapping the heater to earth. Collection of Tomasz Szczesniak PL. Views Read Edit View history. Collection of Karl – Heinz Bossan D.

You can help Wikipedia by expanding it. Saba Meersburg Automatik 7 und Freiburg automatik 7 von Collection of Aldo Patriarca CH. Collection of Dennis Jaroschek D.

EF86 – Wikipedia

Collection of Christian Schaufelberger CH. Collection of Oskar Elm D. Collection of Stig Comstedt S. Collection of Kazimierz Jarosz S. The EF86 [1] is a high transconductance sharp cutoff pentode vacuum tube with Noval B9A base for audio-frequency applications.