JJ EL34 Power Tube $ 30.00 About Us AmpTubes is an Australian based Vacuum Tube supplier dedicated to providing you the best quality products at the best prices possible, with fast shipping, great customer service and a smooth online shopping experience.
Author: Maria Quiroz Created Date: 11/7/2005 1:20:24 PM With only 12% space volume, 70% heater power and 4 to 3.8 watts output power against the ECL11, the ECL86 represents the final perfection of this kind of tubes. Those AF-multiple-tubes were asked for again, as FM-detectors became fitted with Ge-diodes, making the EABC80 obsolete.
Title: EL84 Author: Mullard Subject: FP-2002-02-16 Created Date: 2/17/2002 1:22:39 AM Title: 12AX7 6AX7 Author: Sylvania Subject: JA-FP-2002-03-23 Created Date: 3/24/2002 12:54:30 AM
JJ EF806 is a pretty good tube, the only thing missing is EF86 marking because it is not near specifications of real EF806. Requires sorting to get low noise and tight bias as ral tube of this type should have. Microphonics are not an issue in combo amps, so we finally have an EF86 type that works at this conditions. The EF86 is the standard early stage audio pre-amplifier valve. This exhibit was made by Mullard who designed the EF86. It was first shown at the 1953 Radio Show and first used in their 5-10 amplifier from 1954. Its design is low noise and anti-microphonic and was developed from the B8A EF40. In use it is recommended that it is fitted into a vibration resistant base.
Title: 12AX7 6AX7 Author: Sylvania Subject: JA-FP-2002-03-23 Created Date: 3/24/2002 12:54:30 AM Folks - I've got three EF86's - an EH and two of the new JJ EF806's - all are microphonic. So a couple of questions: - where can you get *reliably* tested EF86's? - what is the best substitute tube that's pin compatible - am I insane trying to put an EF86 in a Deluxe combo (guess: yes!) Thanks Title: EL84 Author: Mullard Subject: FP-2002-02-16 Created Date: 2/17/2002 1:22:39 AM
New JJ Electronics power tube, add some low end chunk to your EL34 tone. Specifications: JJ 6CA7 Data Sheet Title: 12AX7 6AX7 Author: Sylvania Subject: JA-FP-2002-03-23 Created Date: 3/24/2002 12:54:30 AM
Jan 01, 2016 · Holy dynamic swings Batman! The JJ is a fabulous tube: powerful with tons of headroom. Great with hard rock, great with Chris Squire’s bass. Wonderful with classical, conveying a great sense of air and soundstage. JJ could easily double the price of these fine tubes–they’re worth it, and then some. The EF86 is a high transconductance sharp cutoff pentode vacuum tube with Noval (B9A) base for audio-frequency applications. It was introduced in the late 1950s and was produced by Philips, Mullard, Telefunken, Valvo, and GEC among others. Watford Valves, one of Europe's leading suppliers of tested, graded and guaranteed valves to the professional music industry. We offer some of the most comprehensive testing facilities available today.
ECC83S A. F. DOUBLE TRIODE. max 22,0 max 49,2 max 56,3. Base: NOVAL. Uf = 6,3/12,6 V If = 300/150 mA. Typical Characteristics: Ua = 250 V Ug = -2 V Ia = 1,2 mA S = 1,6 mA/V Ri = 62,5 kΩ µ = 100. Capacitances: system I. system II. Adding an EF86 to any tube amplifier. The EF86 pentode. Vox used'em, and so did Matchless and Dr.Z. They are cool tubes, and they have a different personality than the more common 12AX7 preamp stage. The problem with having an itch for a EF86 is that, in most cases, a EF86 based amplifier is well over $1000. Watford Valves, one of Europe's leading suppliers of tested, graded and guaranteed valves to the professional music industry. We offer some of the most comprehensive testing facilities available today.
JJ Electronic 5751 Factory Data Sheet: 5751 Our observations: Another short plate preamp tube from JJ which was released to us in January of 2012. The JJ 5751 has all of the qualities we have come to expect from JJ Electronic, a nice tight low end, a natural open mid, a great harmonic structure and a sweet high end that is not brittle.
Svetlana EF86 High-Performance Audio Small-Signal Pentode he Svetlana EF86 is a glass envelope miniature pentode intended for high-quality audio preamplifier service. Close manufacturing specification tolerances and improved processing provide improved reliability and superior sonic performance. The Svetlana EF86 is The very successful EL84 is the last development step from EL3 via EL41 to the final point of radio output pentodes. It's dissipation power was increased from 9 to 12 watts, giving an output power of 5.7 watts, which was seldom utilized.
If we look at the maximum ratings on a JJ EL84 you can see on the JJ data sheet that the maximum allowable anode voltage is 300 volts . However if we look at a popular amp such as the Vox AC30 which has four EL84’s in the output, the nominal HT voltage is above 300 volts by quite a way. The EL84’s are being over run in these amps!
Tube Data Sheet Locator. Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. The EF86 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 design, the EF86 is much more sensitive than other common preamp tubes like the 12AX7, and achieves more gain.