TESTS NOS on Amplitrex AT1000. Amplitrex AT1000 Test Results 95%+ GM = Within NOS Specs 90%+ EM = Within NOS Specs. All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise).
The product is a vintage Standard M-R 6SN7 GT smoke glass vacuum tube, known for high quality and performance in amplification and signal processing. Made in the United States, these tubes are sought after by collectors and audiophiles for their potential to enhance the sound quality of vintage audio systems. ** GREAT VINTAGE CONDITION **NOT TESTED PLEASE SEE PICTURES CLOSELY
🔥 RCA U.S. ARMY 6SN7GT VT-231 CLASS MATCHED PAIR 🔥. Late-1940s RCA Military Production. 📦 RCA Radiotron Boxes Included. ✅ U.S. Army Contract Tubes. MATCHED SET. ⭐ Genuine RCA Radiotron manufacture.