7189A
The 7189A (P/N {{{Part_nos}}}) is a power pentode vacuum tube with a B9A (Noval) miniature 9-pin base that can handle 440 V plate voltage.
It is the higher voltage and power version of the 6BQ5 aka EL84 tube. Note that the pinout of the 7189A is different from the 7189. They cannot be interchanged without rewiring the socket.
Used in
- output stage of the 106