And arrange different circuits To be consistent with the needs of the amplifier. ![]() We should learn or choose to create 4 preamplifier circuits in which each circuit uses only one transistor. In many cases, the amplifier needs different components such as gain, sensitivity, or even impedance matching. Therefore, we need to have a basic amplifier or preamplifier in order to amplify the signal to have enough power about 1.2Vp-p with low distortion. So, we have to enter the 1.2Vp-p input signal to hear 100 watts of full power.īut if we enter the lower sound signal like 0.1Vp-p., It will cause the sound to be lowered into the speaker as well. And the gain of about 22 times the input sensitivity or the input signal level of 1.2V. Imagine we have a 100 watts RMS amplifier. Related Posts Why use preamplifier circuit ?
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