The Boss PSA-220 AC adapter 9V 200mA (Made in Japan) is an original vintage BOSS power supply from the 1980s, designed for reliable performance with compact guitar effects pedals requiring a PSA-type adapter. Delivering a steady 9 V DC at 200 mA through a 2.1 mm barrel connector with center-negative polarity, it provides the classic, dependable operation that BOSS is known for.
This European model was manufactured in Japan and is built with durable components that have stood the test of time. As an unregulated supply, the voltage can vary slightly depending on load, reflecting the original design of early BOSS adapters. Today, it is valued not only for its functionality but also as a period-correct accessory for collectors and vintage pedal enthusiasts.
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