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:

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 Svetlana EF86 features: • Low microphonics and low heater hum induction - suitable for input stages in high-gain microphone preamps, phono preamps or as a gain stage in condenser microphones • Electrostatic shield is built-in, covers entire inner structure—no external shield required • Low distortion in pentode or triode connection ...

EF86 page sheet date 1 1 1956.04.04 2 2 1956.04.04 3 3 1956.04.04 4 4 1956.04.04 5 5 1956.04.04 6 A 1953.11.11 7 B 1953.11.11 8 C 1957.10.10 9 D 1957.10.10

The EF86 exhibits excellent frequency response characteristics, enabling accurate reproduction of audio signals across a wide range of frequencies. Its ability to faithfully transmit both low and high-frequency components makes it suitable for applications requiring precise audio reproduction.

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 recorders.

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 amplifiers from the octal EF37A .

Title: EF86 Author: La Radiotechnique Subject: SM-FP-2003-08 Created Date: 8/25/2003 12:42:11 AM

Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Please see the substitutes at the top of the page for more details.

You don't often see small-signal pentodes in guitar amps, where the ECC83/12AX7 is king. An EF86 was famously used as the input stage for the early Vox AC30s, but it acheived such high gain (about 200) and was used in such a sensitive position that …