Low power audio amplifier with IC TA7066P

The TA7066P is original monolithic Intregated Circuit Audio Power Amplifier. Package IC is SIP10-16 and manufactered by TOSHIBA.  The above sequence is a series of low-grade intregated circuit amplifier , which was very small output . But this amplifier is very high impedance power output. For more details , see description below.
Technical information :
Min. Voltage   : 8   Volts DC
Max. Voltage  : 25 Volts DC
Max. Power    : 0,3 Watts
Impedance      : 150 Ohms
Min. Currents : 2,8 mA