10 Vintage Box Military RCA 6S4A / 6F4A Premium Audio Vacuum Tube Valve - Bangybang.tube

Listing includes 10 tubes.

Brand: RCA

Type: Premium Vintage Tube

Model: 6S4

• Black Plate
• Double Mica
• Glass Envelope
• Original Factory Boxes included

Country of Manufacturer: USA

Collectible item.

NBXXX