Hard to find shoulder type glass pentode tubes manufactured in the United States or Canada by different makers. These fine tubes, designed for audio output stages of sound and radio equipment, come with 8 pin octal bases, and stout internal supports. They have smoked glass, clear tops, and some may have JAN markings.
Data sheet
Hard to find shoulder type glass pentode tubes manufactured in the United States or Canada by different makers. These fine tubes, designed for audio output stages of sound and radio equipment, come with 8 pin octal bases, and stout internal supports. They have smoked glass, clear tops, and some may have JAN markings.