New old stock ceramic printed circuit mount miniature 9 pin type (British terminology " B9A ") sockets. Ceramic construction with plated pins. Fit tubes such as 12AX7 , ECC83 , ECC82 , EL84, etc, fit most standard US size printed circuit patterns. These are slightly darkened from age, thus the bargain price. The darkening can probably be corrected with bleach or other chemical treatments. |