Схемотехника усилителей. часть 2

By adding another preamplifier stage, we can make our amplifier suitable for a wide variety of practical applications: as part of a radio receiver, as an intercom, etc. A printed circuit board is provided on which you can assemble this circuit in any configuration you need. You can see a simple and accessible traditional printed circuit board manufacturing technique here:    • Антенная приставка - 1. Учимся делать печа...   The output stage tuning technique is here:    • схемотехника усилителей часть 1