The PCC85 is a VHF double triode. The PCC85 was used in band three television tuners as RF amplifier and oscillator.
The construction is of two pressed metal box anodes separated by space and an electrostatic screen. Within the small box anode cavity is a flat cathode and close spaced grid.
One triode with screen behind.
The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is 48 mm tall.
References: Data-sheet & 1040. Type PCC85 was first introduced in 1953. See also1953 adverts.
