4 Vintage Military MS-PEN 10E/21 Premium Vacuum Audio Vacuum Tube Valve - Bangybang.tube

Listing includes 10 tubes.

Brand: MS-PEN

Type: Premium Vintage Vacuum Tube

Model:  10E/21

• Chrome Top
• Glass Envelope
• Black base
• 7 Pin

Country of Manufacturer: USA.

Collectible item.

07/2018