[JonSnell]

Originally Posted by snowman_al

Or buy the correct sized sockets?
If this is for the MA-12, I used to ones that look like this https://www.ebay.co.uk/itm/Ceramic-T...oAAOSwbsBXliqB

I have seen them from UK suppliers too, but a quick search has not got me a result so far.

Alan

https://uk.rs-online.com/web/p/vacuum-tubes/6784094/
Better quality and probably cheaper than fleabay. And you will receive what you want, not what they send!