This is a vintage Sony JB-5334 Master Block, identified by the part number J-625-334-0A. This genuine Sony component is an original equipment manufacturer (OEM) part, likely used for calibration or adjustment within vintage audio or video equipment. The block itself is a brass-toned, L-shaped piece, bearing the identifier PUJ42141-Z.

This listing includes one (1) Sony Master Block as pictured, complete with its original blue Sony branded packaging box. The packaging clearly indicates the model number JB-5334 and part number J-625-334-0A, along with the manufacturing origin. This master block is a valuable find for collectors, technicians, or enthusiasts working with vintage Sony electronics, offering an authentic replacement or calibration tool.

Verified Specifications:
Brand: Sony
Item Type: Master Block
Era/Style: Vintage
Material: Brass (Brass-tone finish)
Model: JB-5334
Part Numbers: J-625-334-0A, PUJ42141-Z
Features: OEM, Made in Japan/Fabriqué au Japan
Included Components: 1 Sony Master Block, Original packaging box
Country of Origin: Japan
Lot Count: 1