Summary

The 6BQ6 was used as the horizontal deflection amplifier in television receivers.
It has a 6.3 volt indirectly heated cathode.
The 6BQ6GTB is the same as the 6BQ6GT except that it has a higher peak plate voltage rating, making it identical to the 6CU6, hence the dual marking.
Manufactured for: Philips (Australia)
Almost certainly manufactured by AWV as this was not a Philips type.
The valve has two grids and a pair of beam forming plates, which achieves the same result as the suppressor grid in a pentode.

Physical Description

Tubular glass bulb with top cap. Octal base with 7 pins present.

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