Found in a 1980s documentation, this amplifier uses an integrated circuit that is not easy to obtain now as it is of the era. The circuit is intended for FI ceramic filter circuits.
The range of this transceiver found in an old national publication is of the order of 1 km. The...
The integrated circuit used in this oscillator is no longer common in our market, as the...
Using the 741 operational amplifier this circuit was found in the August 1993 Electronics Now...