Tubo a vuoto GE 6SL7GT piastra nera RCA 6SL7 rinominata - Etsy Italia
6SL7GT tube data and 6SN7GT tube data
Shuguang Brand 6N9P J Level Vacuum Tube VaIve Metal Base Instead of 6H9C 6SL7 Made in 60s for HiFi Hi-end Amplifier Audio Senior Player Headphone Pro-amp Fever Acoustic DIY Lab 1pc :