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The EL84 is smaller and more sensitive than the octal 6V6 that was widely used around the world until the 1960s. An interchangeable North American type is the 6BQ5 (the RETMA tube designation name for the EL84). The EL84 was developed to eliminate the need for a driver tube in radios, so it has rather more gain than is usual in a power pentode.
The pentode EL84/6BQ5 - 9 pin Noval base tube, that although different enough from the 6V6 not to justify rating it as an equivalent, because of its popularity and ready availability, plus having a close-enough similarity to make it possible, if bias is altered, adapters have been developed commercially to allow an amplifier designed for 6V6 ...
A valve audio amplifier or vacuum tube audio amplifier is a valve amplifier used for sound reinforcement, sound recording and reproduction. Until the invention of solid state devices such as the transistor , all electronic amplification was produced by valve (tube) amplifiers.
Its rated power output was increased to 20 watts, its output tubes were a pair of 6BQ5/EL84 (the only Fender amp of that time to feature them) and they were operated at voltages in excess of their rated maximums and under fixed bias, but was soon changed to 35 watts and a pair of 6L6GC power tubes with a GZ34 rectifier (circuits 6G9-A and 6G9-B ...
Sovtek is a brand of vacuum tube owned by Mike Matthews's New Sensor Corporation and manufactured in Saratov, Russia. They are 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 modern production are factory-fitted with Sovtek valves. [1]
Liverpool; four EL84 output tubes. 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 inverter (Based on the Top-Boost channel of the Vox AC30) [11] Trainwreck also offers half-power versions of each amp model.
There are two variations of the "Delta Blues" model, the Delta Blues with one fifteen-inch speaker or two ten-inch speakers. They use 12AX7 preamp tubes, EL84 power tubes, and have spring reverb tanks. From 1994 to 1997, a 15 watts amp with a 10 inches speaker was also produced, the Peavey Classic 20.
A set of three matched Groove Tubes 12AX7 preamp tubes and two matched Groove Tubes EL84 power tubes, graded according to Fender's specifications, are used in all factory Blues Juniors. The Blues Junior uses a nonadjustable power tube bias (no way to vary the bias point), but it is fairly "hot" and can accommodate most matched pairs on the market.
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