Bias

[guitar88]

V-ati intrebat vreodata cum se regleaza? Uitati aici video cu reglarea BIAS-ului pe cateva amplificatoare "faimoase".

http://www.eurotubes.com/euro-video.htm

[Guest radioman]

Perfect link-ul!

Pacat ca nu am si sculele, dar e foarte util!

[George M.]

ce esti BIASul?

probabil ca mai sunt si altii dornici sa afle

[Guest anghelescu]

ce esti BIASul?

probabil ca mai sunt si altii dornici sa afle

pai din cate am vazut... reglezi ceva la lampi si faci ampus sa sune mai saturat sau..mai... pe scurt, e un fel de tweak pentru sunetu ampului.

[cearny]

De pe wikipedia:

 

Most often, bias simply refers to a fixed DC voltage applied to the same point in a circuit as an AC signal, frequently to select the desired operating response of a semiconductor or other electronic component (forward or reverse bias). For example, a bias voltage is applied to a transistor in an electronic amplifier to allow the transistor to operate in a particular region of its transconductance curve; a (much higher) bias voltage is also often applied to the grid electrodes in a vacuum tube for precisely the same reason.

 

A hot bias can lower the tube life span, but a "cool" biased can induce crossover distortion.