2 Pcs Custom Anode Connector for Eimac 4CX250B 4CX350A 8874/3CX400A7 and others
These are used with 4CX250B, 4CX350A, and 8874 families of tubes. They will also fit glass types like 811A, 572B, etc. This is for your protection and peace of mind as well as ours.