Construction of Sziklai Pair using Mixed Components

摘要

To design Sziklai pair topology for small-signal amplifier circuit with RC coupled voltage divider bias, both BJT and JFET are used. Such a design amplifier circuit can be tuned in the frequency range of 108Hz-620 KHz. The circuit proposed in this paper can amplify audio range signal excursions swinging in the range of 0.1-12mV at lKHz. Features like high voltage gain, current gain greater than unity, wider bandwidth and considerably low harmonic distortion makes this amplifier superior than earlier announced small-signal Sziklai pair amplifier. Various applications for this proposed amplifier is in Radio/TV receivers, low frequency power sources and other audible range communication applications