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To promote their new 9-pin tubes EZ80, EF86 and EL84, the Anglo-Dutch Mullard Company developed, in 1954, a famous and very popular mono amplifier circuit, the Mullard 5-10. The design featured 5 tubes with 10 watts output: EF86 as preamplifier, ECC83 phase-splitting, two EL84 in push-pull configuration, EZ80 rectifier. The amplifier used the ...
Hobbyist constructed Mono PPP amplifier using 813/QB2/250. ~ 65W in Class A. Weight is 48 kg, dissipation is 1 kW. Many modern commercial amplifiers (and some hobbyist constructions) place multiple pairs of output valves of readily obtainable types in parallel to increase power, operating from the same voltage required by a single pair.
The CX logo, present on LPs and laserdiscs utilizing CX noise reduction. CX is a noise reduction system for recorded analog audio. It was developed by CBS Laboratories (a division of CBS) in the late 1970s as a low-cost competitor to other noise reduction (NR) systems such as dbx disc and High-Com II, and was officially introduced in 1981.
Threshold Audio is a high-end audio equipment manufacturer originally established in California in 1974 by audio engineer Nelson Pass and graphic designer René Besne. The company, today based in Houston Texas, manufactures mono-block and stereo power amplifiers, multi-channel power amplifiers and stereo control amplifiers.
6N3C power tube. A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal.Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers in the 1960s and 1970s.
Adjustable 1.5 A positive voltage regulator (1.25 V-37 V) [8] LM13700: Two current controlled operational transconductance amplifiers (OTA), each having differential inputs and a push-pull output. LM393 No Dual Differential Comparator [9] LM358: No Low power, wide supply range dual op-amps [10] LM386: Low voltage audio power amplifier [11] LM3875
Sound waves move the diaphragm, changing the capacitance C, which produces a corresponding voltage change across the capacitor of ΔV = Q / ΔC . [1] The electret's constant charge eliminates the need for the polarizing power supply required for non-electret condenser microphones , though a preamplifier is typically incorporated to boost ...
Compression is commonly used in sound recording and reproduction, broadcasting, [1] live sound reinforcement and some instrument amplifiers. A dedicated electronic hardware unit or audio software that applies compression is called a compressor. In the 2000s, compressors became available as software plugins that run in digital audio workstation ...