The Technics SA-R277 is a Quartz Synthesizer AM/FM Stereo Receiver known for its durability, heavy-duty components, and features like a built-in equalizer, making it a popular choice for vintage audio enthusiasts. 
Here's a more detailed look:
Model: Technics SA-R277 
Type: Quartz Synthesizer AM/FM Stereo Receiver 
Features:
Built-in equalizer 
Durable and heavy-duty components