Sony - TA-1130 / ST-73 Hi-fi set

vintage Sony audio system from the early 70s composed of two stacked modules:
LOWER
The Sony TA-1130 is an iconic top-of-the-line stereo integrated amplifier introduced in 1972, a celebrated pillar of Sony's historic ES series.
This solid-state model stands out for its exceptional build quality, solid aluminum knobs and an advanced circuit with no output coupling capacitors.
Main Technical Features
Output power: 50 Watts RMS per channel into 8 Ohms (real and conservative power).
Frequency response: From 10 Hz to 200 kHz (extremely wide).
Total Harmonic Distortion (THD): Less than 0.05%. Damping factor: 100 at 8 Ohms (ensures excellent bass control).
Weight: About 13 kg.
Connectivity and Functions
Dual Phono input: Perfect for those using two turntables.
Multiple inputs: Includes 3 AUX, Tuner and Tape inputs.
Pre/Power separation: Via a rear switch (Normal/Separate) it can be used either as a preamplifier or as a power amplifier.
Advanced tone controls: Stepped bass and treble selectors with adjustable cutoffs.

UPPER
The Sony ST-73 is a vintage AM/FM stereo radio tuner, launched by Sony in 1976 within a ultracompact audio system. This model stands out for its minimalist design of the era, featuring a brushed aluminum front panel and an external cabinet with wood or faux-wood finish.

Main Features
Analog Tuning: Front panel with an FM/AM frequency scale that is fully illuminated and a needle indicator.
Manual controls: Presence of large metal knobs for station search and physical buttons for audio functions.
Audio mode: Dedicated switch for FM Stereo / Mono and a Muting FM switch (reduces background noise between stations).
Outputs: Classic connection via stereo RCA audio outputs to connect to any integrated amplifier.

EXCELLENT CONDITION WITHOUT BOX AND INSTRUCTIONS.
COMES COMPLETE WITH POWER CABLES