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Réalisation ampli simple petit et costaud = GainKlone LM4780 - Amplification. Merci pour les infos.

Réalisation ampli simple petit et costaud = GainKlone LM4780 - Amplification

@neutrino : mes enceintes font env 5 ohms et 85dB. Le Poppulse T150 (TA2022) que j'avais est peut etre limité par son alimentation ? Tu me conseilles une carte a base de 3 x LM3886 bridgés. Ca fai beaucoup non ? Il va me falloir une alim démesurée. @androuski: je savais pas pour le 340A, mais le 540R me semblait etre composants discrets et mosfet. Je ne conaissais pas audiosector , ni le LM4780 qui est un double LM3886. a 79$ c'est intéressant, mais je comprend pas la partie alimentation. a creuser.le micromega IA100 est à 900€. J'ai fait le bilan de ce qu'il me faut acheter a base des cartes audiophonics : 240€ et c'est sans doute pas fini. "opinions with no supporting evidence, that clearly contradict the available evidences - that's called religion and it has no place in audio".

Ampli / pédale /Effet /AUdio

Low Distortion Adjustable Audio frequency Oscillator. The OP-AMP. Before we describe anything technical, let's see one in action.

The OP-AMP

An op-amp can be connected to a single voltage rail (called UNIPOLAR SUPPLY - 0v to Vcc) or a dual voltage rail (called BIPOLAR SUPPLY +/-Vcc). When connected to a single voltage rail, the output can go from 0v to approx full rail voltage. The OP-AMP has two inputs. A "+" input for non-inverting and "–" for inverting. When the "+" input is a few millivolts higher than the "–" input, the output goes HIGH. If the "–" input sits at half rail voltage via two equal-value resistors, the "+" input must go above ½V for the output to go HIGH, as shown in the animation below: The "–" input can control the output as shown in the animation below: From the animations above we have shown two things: 1. The OP-AMP can be used as a VOLTAGE FOLLOWER. Note: the output follows the input The OP-AMP in the arrangement above has UNITY GAIN (gain = 1). We will now show how to obtain GAIN or AMPLIFICATION from an OP-AMP.

Go to: P2. Classic Audio Products of Illinois. The gar2520 DOA Full Kit Bundle is a full and complete parts kit with everything required to complete the gar2520 Discrete Operational Amplifier build.

Classic Audio Products of Illinois

This board has been designed by Gary Barnett of Barnett Industries. Gary has built upon the reverse engineering work of Peter Lazaro, better know as “Peter Purpose”. This DOA is a nine transistor amplifier modeled after API’s legendary, mid ‘70’s, Studio Systems/Huntington era 2520. The gar2520 sounds absolutely fantastic in our VP25, VP26 and VP312 microphone preamplifiers. Sonically, it’s hair-splittingly close to a vintage Huntington 2520 which is amazing if you consider the “modern component” phenomenon.

Some of the applications the gar2520 DOA can be used for: Microphone Preamplifiers Line or Booster Amplifiers Lossless Combining Amplifiers Balanced Transformerless Amplifiers Equalizers and Compressors Additional features and specs: Industry standard 2520 footprint for plug-in or PC mount connections Low noise, high power output. The Electronic Peasant's Do-It-Yourself Projects Page. CGS - Ken Stone's Modular Synthesizer. Build your own Analog Synthesizer. Schematics/Effects - E-Music DIY. Schematics/Filters - E-Music DIY.