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The 12AU7 and its variants are miniature nine-pin (B9A base) medium-gain dual-triode vacuum tubes. It belongs to a large family of dual-triode vacuum tubes which share the same pinout ( RETMA 9A). 12AU7 is also known in Europe under its Mullard–Philips tube designation ECC82 . [ 1 ]
15.2 General literature and data sheets. 16 See also. ... Download as PDF; Printable version; ... Subminiature indicator tube, 1.4V/25 mA filament, ...
EA52/6923 – Instrumentation rectifier diode up to 1 GHz, Rocket-type disk-seal tube; EA53 – Co-axial instrumentation rectifier diode up to 1 GHz, Rocket-type disk-seal tube; EA76 – Diode, 5-pin all-glass wire-ended; EA111 – Diode for time bases, Y8A 8-pin steel tube base; EA766 – Diode, 5-pin all-glass wire-ended
In most cases, this can be easily filtered out by placing a small capacitor in parallel with the VR tube or using an RC decoupling network downstream of the VR tube. Too large a capacitance (>0.1 μF for an 0D3, for instance), however, and the circuit will form a relaxation oscillator, definitely ruining the voltage regulation and possibly ...
image - Picture of the vacuum tube; caption - Caption for the picture; classification - Mandatory Field exampled include: cold cathode regulator, diode dual diode, triode, dissimilar triode, tetrode, beam tetrode, pentode etc. service - Common application of the tube examples include, Class A amplifier, AF modulator, RF amplifier
In Europe, the principal method of numbering vacuum tubes ("thermionic valves") was the nomenclature used by the Philips company and its subsidiaries Mullard in the UK, Valvo (de, it) in Germany, Radiotechnique (Miniwatt-Dario brand) in France, and Amperex in the United States, from 1934 on.
12AT7 (also known in Europe by the Mullard–Philips tube designation of ECC81) is a miniature nine-pin medium-gain (60) dual-triode vacuum tube popular in guitar amplifiers. It belongs to a large family of dual triode vacuum tubes which share the same pinout (EIA 9A), including in particular the very commonly used low-mu 12AU7 and high-mu 12AX7.
12AX7 (also known as ECC83 [1]) is a miniature dual-triode 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.
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