This integrated amplifier was found in a non-existent British magazine from 1975. The used integrated circuit is still popular and the mono bridged version can provide 36 W output power. 4 A.
This simple regenerative receiver for the medium wave range is from a 1956 Sylvania publication. Details...
This is the receiver for the previous circuit found in the November 1991 Radio Electronics...
January 2017 – The bq35100 integrated circuit, a charge monitor and EOS for non-rechargeable...