New old stock ceramic miniature 9 pin type (British terminology " B9A ") sockets. Ceramic construction with plated pins. Fit tubes such as 12AX7 , ECC83 , ECC82 , EL84, etc, fits standard 3/4 inch (19 mm) hole dimensions.
These are slightly darkened from age, thus the bargain price. The darkening can possibly be corrected with bleach or other chemical treatments. |