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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Collection of Tor Steinnes N.

Articles containing potentially dated statements from All articles containing potentially dated statements All stub articles. Erb Analysis by original leaflets.

PF86 ; UF86 Other base and data slightly different: Collection of Kazimierz Jarosz S. Collection of Massimo Pedrina I.

Collection of Aldo Patriarca CH. Collection of Jacky Parmentier F. Collection of Ekkehard Pfau D. Saba Meersburg Automatik 7 und Freiburg automatik 7 von Collection of Klemens Rhode D.

RTT Franzis You reach this tube or valve page from a search after clicking daa “tubes” tab or by clicking a tube on a radio model page.


EF86 @ The Valve Museum

Collection of Christian Schaufelberger CH. This exhibit was made by Mullard who designed the EF Collection of Daniel Consales D. Retrieved from ” https: By using this site, you agree to the Ff86 of Use and Privacy Policy. Collection of Jacob Roschy D.

The full Mullard data sheet is available by clicking the valve name at the top of the page.

This has a synthetic rubber mount. Collection of Bruno Candreia CH. Warning the PDF file is 3. You can help Wikipedia by expanding it.

The EF86 was used in many preamplifier designs during the last decades of vacuum tube hi-fi development. Collection of Ralf Meinke D.

(PDF) EF86 Datasheet download

The low level of hum attained with this valve can be completely masked by that due to an unsuitable valve-holder, in which excessive leakage and capacitive coupling between pins will introduce considerable hum. 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. EF86 Four EFtype tubes. Collection JR Jacob Roschy. Collection of Ottmar Rollmann D.


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. Collection of Reinhard Riek D.

Collection of Georges Werts B.

Tesla; Praha, Bratislava etc. 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. The EF86 is the standard early stage audio pre-amplifier valve. Collection of Bekir Yurdakul F. Collection of Danko Tkalec HR.

Collection of Oskar Elm D. 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.

Collection of Karlheinz Fischer D.

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