Vintage Sony AC Adaptor AC-39 — made in Japan, tested and working properly.

This original OEM adapter was designed for Sony tape recorders and radio receivers that operate on 3V DC power (commonly replacing two 1.5V batteries).

Test Results:

• Output measured 3.6V DC with voltmeter (normal for unregulated adapters).

• Steady output and strong cord connection.

Specs:

• Input: AC 120V 60Hz 5W

• Output: DC 3V 300mA

• Polarity: Center-negative (– tip, + barrel)

• Cord length: ~78 inches (6.5 ft)

• UL listed • Made in Japan

Clean and functional — ideal for collectors or anyone restoring vintage Sony gear.

📦 Ships fast, tested, and carefully packaged.

📋 Item Specifics

Brand: Sony

Model: AC-39

Type: AC Adapter / Power Supply

Input Voltage: AC 120V 60Hz 5W

Output Voltage: 3V DC (measured 3.6V unloaded)

Output Current: 300mA

Polarity: Center Negative (– in center, + outer barrel)

Cord Length: Approx. 78 inches

Country/Region of Manufacture: Japan

Compatible Brand: For Sony

Compatible Model: Tape Recorder / Radio Receiver

Condition: Used – Tested and working

Color: Black