Modern Usage
Although the TRF design heralds from the early years of radio and has been largely superseded by superheterodyne and other circuits, it was 'resurrected' in 1972 in silicon as the ZN414 TRF radio integrated circuit from Ferranti, thus affording the design a new lease of life in hobbyist radio projects, kits and some commercial products.
Read more about this topic: Tuned Radio Frequency Receiver
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