Simple broadband antenna amplifier provides a gain of about 10 dB in the whole band allocated for television broadcasting.

The amplifier is a cascade of common-emitter and deep negative feedback through R1 C2, and the emitter correction R5 R6 C5 SB. The amplifier is powered via the cable. Zapper circuit R4 NW provides stability antenna amplifier at high SWR in the cable, which is possible when the input impedance of the TV differs significantly from wave resistance of the cable.

Broadband amplifier for CTA

Schematic diagram of the amplifier


Add comment


Service manuals

Copyright © 2020 Electrical circuits.