The EF86 [1] is a high transconductance sharp cutoff pentode vacuum tube with Noval (B9A) base for audio-frequency applications. It was introduced by the Mullard company in 1953 [ 2 ] …

Tube EF 86 or Röhre EF86 ID2011, Vacuum Pentode, Noval, 9 pin miniature (USA pico-9) B9A and Audio Frequency shown. Radio tubes are valves.

The EF86 is the standard early stage audio pre-amplifier valve. This exhibit was made by Mullard in Great Britain. Mullard designed the EF86 and it took over the frond end stage of audio …

EF86 page sheet date 1 1 1970.01 2 2 1970.01 3 3 1970.01 4 4 1970.01 5 FP 1999.08.16. Title: EF86 Author: Philips (scanned by Frank Philipse) Created Date: 8/16/1999 11:08:19 PM

The EF86 vacuum tube is a high gain pentode designed to amplify low-level audio signals. It is typically used as a preamp in audio equipment and instrument amplifiers. Because of its …

Tube Depot carries a selection of EF86 / 6267 Pre Amp Vacuum Tubes. New & NOS pre amp compatible tubes from Electro-Harmonix, JJ, Amperex & other brands!

The EF86 vacuum tube is a high gain pentode designed to amplify low-level audio signals. Introduced in the late 1950's, it is used as a preamp in audio equipment and instrument …

Low noise pentode intended for use as R.C. couPled A.F. EF86 voltage amplifier, particularly in the early stages of high-gain audio amplifiers, microphone pre-amplifiers and magnetic tape …

Aug 25, 2015 · The EF86 vacuum tube is a high gain pentode designed to amplify low-level audio signals. It is typically used as a preamp in audio equipment and instrument amplifiers. …

Jul 19, 2018 · Are you currently experiencing bad sound from the EF86 you are using in your amp? Describe the symptom . . . hum, distortion, apparent frequency response problem, …