-There are two pink nail polish markings on the back panel, marking the TAPE 1: Record and Play, and Output. These marking do not interfere with the function of the unit.

This Sansui RA-900 Reverberation Amplifier is a must-have for vintage audio enthusiasts. Made in Japan, this amplifier offers unparalleled sound quality and is perfect for those seeking a truly authentic listening experience. The unit is in excellent working condition and has been well-maintained over the years.

The amplifier features a range of inputs and outputs, making it easy to connect to your favorite audio equipment. The sleek design and classic styling make it a great addition to any vintage audio collection. Whether you're a serious audiophile or simply looking for a conversation piece, this Sansui RA-900 is sure to impress.

*** I will be listing more electronic components as I inventory, and bench test them for power up, and function. Let me know if you need additional pictures, or info.