Up for sale is a beautiful, highly collectible vintage lot of three (3) Sylvania VT-115A (6L6G) Smoked Glass Vacuum Tubes. These are premium New Old Stock (NOS) military-spec beam power tetrodes sourced from a pristine private estate, widely celebrated by audiophiles and musicians for their exceptional build quality and warm, detailed vintage tone.
Test Results (B&K 747 Dynamic Mutual Conductance Tester):
These tubes have been fully tested on a well-maintained B&K 747 tube tester. They all test completely free of shorts, gas, or leakage, and show stellar, tightly grouped emissions results and all three tubes tested 100% strong
Product Highlights:
- Brand: Genuine Sylvania (Made in USA)
- Designation: VT-115A / 6L6G
- Glass Envelope: Desirable "ST" shouldered/coke-bottle shape featuring the iconic dark smoked/tinted internal glass coating.
- Cosmetic Condition: Factory-mint condition. The base pins are straight, clean, and entirely free of corrosion. The glass envelopes are completely firm and securely attached to their bases.
- Vacuum Seal: Silver flash getters are fully intact, mirror-bright, and healthy, confirming original NOS status with zero hours of heavy operation.
Shipping & Handling:
Precision audio vacuum tubes are incredibly fragile. This lot will be meticulously wrapped in layers of heavy bubble wrap and packed securely in a rigid crush-proof box. Ships quickly with full tracking.
Please review all high-resolution photos carefully to evaluate physical markings and condition