Sony TA 6650F (1978)

Market Value: $2,000-$4,000+ depending on condition and functionality
Collectibility Rating: 9/10

Name: Sony TA 6650F
Brand: Sony

Specifications

Feature	Specification
Year of Production	1978-1980
Power Specifications	150W per channel into 8Ω (stereo), 200W into 4Ω
Impedance	4-16Ω
Sensitivity	1.5V for full output
Key Features	Dual mono construction, STK power packs, DC amplifier design, toroidal transformer, V-FET output stage, direct coupling, separate power supplies for each channel

Historical Significance

One of Sony's flagship V-FET amplifiers representing the pinnacle of their 1970s engineering, known for exceptional build quality and innovative V-FET technology that offered tube-like sound with solid-state reliability

Sound Signature

Warm, detailed, smooth high frequencies, powerful bass response, tube-like musicality with solid-state control and dynamics

Maintenance and Restoration Tips

Rare and expensive V-FET output transistors failure, aging capacitors, potentiometer cleaning, difficult to service due to complex design and rare parts