The PCL85 is a triode and output pentode combined. The PCL85 was used as frame output valve on monochrome tv's and occasionally (ITT CVC5 chassis) colour tv's. The pentode section does not have an audio output rating.
The triode on the right is screened from the large output pentode.
Face view of the triode with the bright intersection screen behind.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 67 mm tall.
References: Datasheet & 1040. Type PCL85 was first introduced in 1961.