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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The UF86 is identical with the exception of a Vacuum tubes Guitar amplification tubes Electronics stubs. You will find thousands of tubes or valves with interesting links. It was first shown at the Radio Show and first used in their amplifier from In high gain applications such as tape recording care should be taken et86 siting the valve, particularly when a loudspeaker is present in the same cabinet or where a motor is mounted on the same chassis.

Collection of Daniel Consales D.

From Wikipedia, the free encyclopedia. Collection of Kazimierz Jarosz S. Collection of Karl – Heinz Bossan D.

(PDF) EF86 Datasheet download

In use it is recommended that it is fitted into a vibration resistant base. Collection of Aldo Patriarca CH. You even can look up radio models with a certain tube line up. Under these conditions the maximum hum level is 1. RTT Franzis You reach this tube or valve page from a search after clicking the “tubes” tab or by clicking a tube on a radio model page.


This exhibit was made by Mullard who designed the EF The landmark amplifier designs from Mullard’s application laboratories all specified the EF86, and today it is still the valve of choice for this work. Although used in circuits such as tape recorder input stages and instrument amplifiers, microphony can be daga problem, even when mounted in a vibration-reducing valve holder.

For the EF86 under normal conditions, I. Collection of Danko Tkalec HR. Collection of Reinhard Riek D. Collection of Ralf Meinke D. Collection of Tor Steinnes N. Antique radios, Old Time Radios. Type EF86 was first introduced in Collection of Karlheinz Fischer D. Collection of Patrice Zeissloff F. Care in the design of the valve to ensure that the electrode structure and its mounting are as rigid as possible has reduced the microphony of the EF86 to a very low level.

Articles containing potentially dated statements from All articles containing potentially dated statements All stub articles. Collection of Hermann Df86 A. PF86 ; UF86 Other base and data slightly different: By using this site, you agree to the Terms of Use and Privacy Policy.

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


Collection of Karl-Heinz Entrich D. Warning the PDF file is 3. The low level of hum attained with this valve can be completely masked by that due to an unsuitable valve-holder, in which excessive sjeet and capacitive coupling between pins will introduce considerable hum.

Tesla; Praha, Bratislava etc. This page was last edited on 1 Novemberat Its design is low noise and anti-microphonic.

EF86 – Wikipedia

Other class quality otherwise equal: Collection of Jacob Roschy D. You can help Wikipedia by expanding it. The EF86 [1] is a high transconductance sharp cutoff pentode vacuum tube with Noval B9A base for audio-frequency applications. Collection JR Jacob Roschy.

Collection of Massimo Pedrina I. This has a synthetic rubber mount. Collection of Tomasz Szczesniak PL. In such cases a flexible mounting for the valve-holder or a separated weighted sub-chassis is advisable.

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This electronics-related article is a stub. An industrial variant of the tube is known as The EF86 is the standard early stage audio pre-amplifier valve.

Collection of Jacky Parmentier F.