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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This page was last edited on 1 Novemberat In other projects Wikimedia Commons. Collection of Ekkehard Pfau Ef68. Articles containing potentially dated statements from All articles containing potentially dated statements All stub articles.

The EF86 [1] is a high transconductance sharp cutoff pentode vacuum tube with Noval B9A sheeet for audio-frequency applications. Collection of Hermann Fleischanderl A. Its design is low noise and anti-microphonic. You even can look up radio models with a certain tube line up. EF86 Four EFtype tubes. For the EF86 under normal conditions, I.


(PDF) EF86 Datasheet PDF Download – A.F. Pentode

Collection of Massimo Pedrina I. Collection of Reinhard Riek 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. 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 sheeh.

This electronics-related article is fata stub. This can be further reduced by centre tapping the heater to earth. Saba Meersburg Automatik 7 und Freiburg automatik 7 von Collection of Oskar Elm D. Retrieved from ” https: 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.

(PDF) EF86 Datasheet download

Collection of Dennis Jaroschek D. This exhibit was made by Mullard who designed the EF Collection of Kazimierz Jarosz S. Collection of Bruno Candreia CH. Collection of Ralf Meinke D. Collection JR Jacob Roschy. Erb Analysis by original leaflets. Other class quality otherwise equal: Collection of Christian Schaufelberger CH. Collection of Aldo Patriarca CH.


EF 86, Tube EF86; Röhre EF 86 ID, Vacuum Pentode

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. 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.

Collection of Patrice Zeissloff F. The low-frequency noise generated by a valve is most conveniently specified as an equivalent voltage on the control grid for a specific bandwidth. Antique radios, Old Time Radios.

Collection of Jacky Parmentier F. Collection of Stig Comstedt S.