Home/ELECTRON TUBES/Electron tubes/Electron tube 6S4S (6C4C) = 6B4GElectron tube 6S4S (6C4C) = 6B4G(images are for illustrative purposes only)product ID1000233ManufacturerSvetlana, St. Petersburg, RU32.04 $Priceout of stock(recycling fee is counted in the price)