The 5965 is a special quality double triode designed for use in computer circuits. The 5965 will maintain its emission characteristics after long periods where the valve is biased to cut-off. This characteristic equates to use in a bi-stable or flip-flop circuit. The 5965 is not designed for audio use.
The heater is centre tapped for use at 6.3 or 12.6 Volts but in a parallel connection.
End view of the twin sections.
The anode sides are stitched together. The control grid can be seen to be wound on copper supports.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins is 47 mm tall.
References: Data-sheet. Type 5965 was first introduced in 1954. See also1954 adverts.
