El amplificador de válvulas – Introducción

Las válvulas fueron los dispositivos electrónicos activos por excelencia desde principios de siglo hasta bien entrados los años sesenta. Entonces se vieron desbancadas por los diminutos transistores y diodos de estado sólido, capaces de desempeñar las mismas funciones en espacios mucho más reducidos, con un menor peso y con temperaturas de funcionamiento muy inferiores a las de las válvulas. Parecía ser un gran alivio para los músicos: más potencia y menos peso… guau!!! A principios de los setenta empezaron a salir nuevas empresas que apostaban por la amplificación a transistores y las ya consolidadas ampliaban sus catálogos con este tipo de amplis para no perder ventas ni mercado. Pero el transistor se encontró desde sus inicios con un grave problema: su linealidad y su mejor rendimiento teórico daban como resultado en circuitos de audio sonidos muy fríos y con poco carácter. Esta es la razón básica por la que la válvula se ha mantenido desde entonces en amplificadores para instrumento musical y aplicaciones de audio profesional para estudios de grabación y alta fidelidad. Su comportamiento no lineal y ‘teóricamente imperfecto’ quedan de sobras compensados con resultados de sonido mucho más musicales y atractivos en cuanto a la tonalidad. Un simple circuito con una sola válvula puede dar un gran carácter y color al sonido. Ni siquiera un complejo circuito digital es capaz de emular al 100% el comportamiento de una válvula…

Anuncios

Publicado el agosto 23 en Noticias. Añade a favoritos el enlace permanente. 1 comentario.

  1. Couple of years before this fruit was just a common fruit used by the locals of South-east Asia.
    After some scientific studies and a clunical trial along wuth a well-known doctor’s endorsement,
    the street to recognition commenced. Butt I’m getting before
    myself.
    buy garcinia cambogia online
    The second effect could be the most important one too.
    Your mind wilkl be programmed in a way that it will tdll tthe body not to keep the incoming fat, and better
    yet, to start out burning your reserves. Whikch means that you are able to leave behind your stomach fat.

    Last however not least it manages yor serotonin levels. If this endocrine is at a low level within your body, you will start craving food.

    What kind of food can you usuyally crave? Yes, junk-food. Pizza, burgers, ice-cream andd the like.

    A few year-ago Doctor. Oz presented Garcinia Cambogia extract to the earth.
    Alll of us know Doctor. Oz – he’s tthe TELEVISION doctor whosee objective will be too assist people live a heathier living.
    No surprise Garcinia made its debut on this show.

    I really beliueve you’ll be able to view it yourself and nevertheless find that episode online.
    What I’ve realized using this show can be as follows:
    there clearly was a clinical trial conducted just before the launch and it passed with flying recommendations.

    garcinia cambogia extract
    There are numerous vendors out there and unfortunately there a number
    of scam designers aswell. Consequently I’m usually an
    individual and only buy from dependable websites.
    After having a significant amount of searching, I’ve managed to find my personal favorite garcinia provider and Miracle Garcinia Cambogia was
    called by it’s.

    There’s a tiny hiccup with them. They are therefore popular that they go out of stock really quickly.

    If you need to get yourself some high quality garcinia, obtain currently!

    If you begin to see the sold-out sign on the site, make sure you visit again later
    because they replenish their stock regularly.
    where to buy garcinia cambogia
    All of the individuals managed to drop weight without the unwanted effects.
    For more information regarding the medical trial, take
    a look at the article above.

    The primary guest on the show was Doctor. Chen who described what Garcinia Cambogia
    is and how it works. Besides that, two haphazard folks from the market
    volunteered to try the extract. The outcome were breathtaking
    to convey the smallest amount of.

    The 2 females who tried it managed to eliminate
    between 5-7 pounds in only 1 week. Even better, they didn’t
    do an intense last minute diet or pump iron at the gym.
    They resided their typical lives and squeezed some weight off.

    This is what got my attention. With Garcinia Cambogia you can lose weight without any challenging
    routines or crazy diets. All you’ve got tto accomplish is benefit from the results and take it regularly.

Responder

Introduce tus datos o haz clic en un icono para iniciar sesión:

Logo de WordPress.com

Estás comentando usando tu cuenta de WordPress.com. Cerrar sesión /  Cambiar )

Google photo

Estás comentando usando tu cuenta de Google. Cerrar sesión /  Cambiar )

Imagen de Twitter

Estás comentando usando tu cuenta de Twitter. Cerrar sesión /  Cambiar )

Foto de Facebook

Estás comentando usando tu cuenta de Facebook. Cerrar sesión /  Cambiar )

Conectando a %s

A %d blogueros les gusta esto: