This Mullard PC95 is an RF amplifier triode with a vari-μ characteristic. The PC97 is the straight cut-off partner to this PC95.
The PC95 has a high mutual conductance and the design use was in domestic VHF television receivers.
The PC95 and PC97 are frame grid triodes that in addition to a very high mutual conductance of 10.00 mA/V have an unusually low grid to anode capacitance of about 0.5 pF. This low capacitance is obtained by using a special shield between grid and anode in conjunction with a shaped anode. Because of this shield that is in place except in the active cathode to anode region these valves are also known as Beam Triodes. An additional benefit is that the neutralising capacitor can be connected to ground on one side. The PC97 also uses this construction technique.
The working face of the anode is at the end of the depression visible in this image. The rest of the anode metal is for heat dissipation.
The BVA logo, Older style Mullard logo and Made in Holland - By Philips the parent company.
Thanks to Mark Mallison for sending the images.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 47 mm tall.
Reference: Data-sheet. Type PC95 was first introduced in 1962. See also1962 adverts.
