7189A
The 7189A (European: E84L) 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 - the screen grid is additionally connected with pin 6, the control grid additionally with pin 1 (for better heat dissipation). It may therefore be necessary to rewire the socket to use a 7189.
GE was the only US maker of the 7189A.
Used in
- Output stage of the 106
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