Excellent warmth in the midrange, plus the side mounted getter adds rigidity to the plate structure, reducing microphonics. These are a bargain now but are quickly being gobbled up by audiophiles. Discover the quality of these quality USA made tubes as they will be worth their weight in gold in the future.
If RCA was Chevrolet, Zenith was Cadillac. ✅ Heavy-Duty GTB Construction. 🔥 NOS Zenith 6SN7GTB Matched Quad – Original Zenith Boxes – Premium USA Audio Tubes 🔥. ✅ Genuine USA-Made Zenith 6SN7GTB. ✅ Original Zenith Radionic Tube Boxes.
The minimum is equal to 65% of the life of the tube. TESTED AT: 103/99.
🔥🔥 RARE 1963 WESTINGHOUSE 6SN7GTB "TOUGH DOG" PERFECT MATCHED PAIR 🔥🔥. 🐾 LEGENDARY 2-HOLE PLATES • U.S.A. MADE • 📦 ORIGINAL WESTINGHOUSE BOXES • 🎵 AUDIOPHILE FAVORITE. 🏭 Westinghouse Electric Corporation.
All of these tubes have been tested for transconductance, shorts, gas, leakage and life. These tubes have black ladder plates and halo getters. They have 1960 and 1961 date codes. They have been tested for shorts, gas, and transconductance.