Sony TA 1140 (1971)

Market Value: $300-$600 depending on condition and restoration status
Collectibility Rating: 7/10

Name: Sony TA 1140
Brand: Sony

Specifications

Feature	Specification
Year of Production	1971-1973
Power Specifications	40W per channel (8Ω), stereo
Impedance	4-16Ω
Sensitivity	Unknown
Key Features	Dual power transformers, direct-coupled OCL output stage, FET input stage, 4-gang tuning capacitor, separate power supplies for preamp and power amp sections, front panel headphone jack

Historical Significance

Part of Sony's first generation of high-end integrated amplifiers, representing Japanese audio engineering excellence during the early 1970s. Notable for its dual transformer design and robust construction that competed with more expensive separates.

Sound Signature

Clean, detailed, and neutral with excellent transient response. Known for its tight bass control and transparent midrange. Slightly clinical compared to tube amplifiers but highly accurate.

Maintenance and Restoration Tips

Aging electrolytic capacitors, noisy volume and tone control potentiometers, occasional issues with protection relay contacts, bulb replacement for dial lights