UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Argus25 · 21st Jun 2019, 9:18 am

Some B9 bases are definitely made for different sizes chassis holes, that includes both top and under chassis mounting types.And ceramic vs phenolic types. I have been caught out a few times myself. Many sellers do not specify the exact sizes then you can get a good or a bad surprise when they arrive. Some of the reproduction ceramic sockets from the Far East fit the larger size hole too.

21st Jun 2019, 9:18 am	#4
Argus25 No Longer a Member Join Date: Oct 2016 Location: Maroochydore, Queensland, Australia. Posts: 2,679	Re: Valve bases, B9A etc. Some B9 bases are definitely made for different sizes chassis holes, that includes both top and under chassis mounting types.And ceramic vs phenolic types. I have been caught out a few times myself. Many sellers do not specify the exact sizes then you can get a good or a bad surprise when they arrive. Some of the reproduction ceramic sockets from the Far East fit the larger size hole too.