The 1.5 kHz. input to simulate audio signal. Above 12 volt battery supply with switch and capacitors would connect to power connection on TDA2002 IC amplifier, circuit shown unconnected. Mount TDA2002 on heat sink with power source able to handle 4 amps at peak output signals. The 5 ohm resistor in antenna loop is to run in simulation mode.
Parts information. 4.7 uf is electrolic 25 WVDC capacitor. All 470 uf capacitors are 25 WVDC rated.
