I am also trying to restore a Crosly 526 and require 6A8G, 6K7G and a 6J7G tubes. These all have grid caps so I will need the tube shields to fit them as well. I can send a photo of what the tube shields look like.
Hi Lorne. I’ve got a 6K7G, used,tests very good for $2.50 and a 6K7M, Rogers spray shield tube, used, tests very good for $9.50. Additionally, should you decide to go with metal equivalents, I have 6J7 NOS for $5.00 and a used 6A8 for $5.00. Sorry, I don’t have any shields.
Regards,
George