12AX7 (also known as ECC83[1]) is a miniature dual-triode 6AV6 vacuum tube with high voltage gain. Developed around 1946 by RCA engineers[2] in Camden, New Jersey, under developmental number A-4522, it was released for public sale under the 12AX7 identifier on September 15, 1947.
The 12AX7 was originally intended as replacement for the 6SL7 family of dual-triode amplifier tubes for audio applications. As a popular choice for guitar tube amplifiers, its ongoing use in such equipment makes it one of the few small-signal vacuum tubes in continuous production since it was introduced.
12AX7 (also known as ECC83) is a miniature dual-triode 6AV6 vacuum tube with high voltage gain. Developed around 1946 by RCA engineers in Camden, New...
manufactured in USSR, Russia and China with characteristics similar to the 12AX7. The most significant difference between the two is that 6N2P has its two...
but the 1958 model 5F1 featured an 8". The 5E1 and 5F1 circuits used a 12AX7 dual triode in the preamplifier to provide two stages of voltage amplification...
the Fender Vibrolux of the time, with no presence control and only one 12AX7 tube for the tremolo effect. It sported typical "brownface" cosmetics, with...
Sylvania supply was exhausted (per James Brown, "Tone-Talk", Ep. 17), and five 12AX7 Tubes in the preamplifier staging (with one as a phase inverter). A defining...
very commonly used low-mu 12AU7 and high-mu 12AX7. The 12AT7 has somewhat lower voltage gain than the 12AX7, but higher transconductance and plate current...
10-watt amplifier utilising a 6AV6 (from 1956 a 6AT6) preamplifier tube, 12AX7 phase inverter tube, a pair of 6V6GT power amplifier tubes, and one 5Y3GT...
two triode tubes while taking up half as much space and costing less. The 12AX7 is a dual "high mu" (high voltage gain) triode in a miniature enclosure...
or 50 Watt (2x7591), tube rectified, EF86-12AX7 cathode follower. Employs an EF86 preamp tube feeding a 12AX7 phase inverter. Released January 2008 SoHo...
circuitry of the Fender Bassman but had an all-aluminum chassis, and a 12AX7 valve as the first in the chain (while the Bassman had a 12AY7). In addition...
amplifiers. The 5751 is a modified version of the 12AX7 and, having a gain factor of 70-80 (as opposed to the 12AX7's 100), is used to "soften up a harsh modern...
amps; the Slant 6V, which offers 6L6 or 6V6 power tube options also has 12AX7 and 12AT7 tubes, was praised as "an amazingly useful and versatile amp"...
Two 12AX7 preamp tubes and one 12AX7 phase inverter. Rocket; four EL84 output tubes and a 5AR4 rectifier tube. Two 12AX7 preamp tubes and one 12AX7 phase...
a 12AT7 tube as a preamplifier; a 6K6 tube as the reverb driver; and a 12AX7 as the reverb recovery tube. The rectifier is a diode-type solid state unit...
sections in one envelope are used, usually the noval types 12AT7, 12AU7, or 12AX7 or equivalents, less usually the octal 6SN7. The earliest mass usage of...
pentode) and added the tone control that was absent in the Champs; the 12AX7-based Princeton models 5D2 through 5F2-A were essentially the Champ circuits...
"Delta Blues" model, the Delta Blues 115 and the Delta Blues 210. They use 12AX7 preamp tubes, EL84 power tubes, and have spring reverb tanks. From 1994...
Bandmaster reverb formula in its use of a hybrid preamp section which utilises 12ax7 tube power alongside a DSP section. There are several versions of the Bandmaster...
original first-generation AC30 used a GZ34 tube rectifier, three ECC83s (12AX7) for the Normal channel and the tremolo/vibrato oscillator/modulator circuits...
often used in guitar amplification and include versions of the popular 12AX7, EL84, EL34, and 6L6 vacuum tubes. Many of the vacuum-tube amplifiers in...
beam tetrodes for the power section and two 12AX7 dual triodes for the preamp section. One additional 12AX7 tube is utilized for the phase inverter of...
continued to be manufactured in Russia, Slovakia (JJ Electronic), and China. 12AX7 - includes a comparison of similar twin-triode designs 12AT7 "www.thetubestore...
rectifier, 2 6V6-GT power tubes operating in push-pull mode, and a 12AY7 and a 12AX7 in the preamp. The output is rated at about 15 watts. The Tweed Deluxe originally...
is known as the '68 Custom Princeton Reverb. Preamp tubes: one 7025, two 12AX7, one 12AT7 Output tubes: two 6V6GT, fixed-bias Rectifier: 5AR4 (blackface...
depicted above. The typical flashed getter used in small vacuum tubes (seen in 12AX7 tube, top) consists of a ring-shaped structure made from a long strip of...
A Virtual Valve Amplifier (VVA) is software algorithm designed and sold by Diamond Cut Productions, Inc. for simulating the sound of various valve amplifier...
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