This listing is for 4 NOS and tested tubes. These are single system triode preamp tubes featuring dark gray plating, an O-shaped round getter, and etched codes. They were produced in the 1960s in what was then Holland, Germany, and Hungary. The Tungsram tube is particularly rare, being an early production model with a solid foil disk getter.
Tested VERY STRONG - please check the pictures!
This is a VERY WELL-KNOWN AND HIGH-QUALITY BRAND!
Shipping via registered airmail with tracking number. Import fees for U.S. buyers are included in the shipping cost under the new tariff regulations. Other methods available upon request.