This tube is a ECC83S tube issued through JJ. Long grey ladder plates raised halo getter. JJ electronic. this Tube was tested on the Jackson model 103 where a typical NOS Tube will have a test result of around 38-40 and the minimum good value is 25.
This tube is a ECC83S tube issued through JJ. Long grey ladder plates raised halo getter. JJ electronic. this Tube was tested on the Jackson model 103 where a typical NOS Tube will have a test result of around 38-40 and the minimum good value is 25.