Sensibly equivalent¶ to:
A50P ACVP2 CV3572 VP4A W42
The MVSPenB was introduced in 1937. It has the standard mains heater of the day, 4.0 V at 1.0 A. This variable μ pentode was designed for RF and IF amplifier service in superhet radio receivers.
The diamond label echo's the 'New Process' design of the early 1930s. Our other MVSPenB has the branding printed on the zinc metalising paint and is typical of late 1930s Cossor Valves.
The classic envelope is 43 mm in diameter and, excluding the B7 base pins, is 104 mm tall.
References: Datasheet, 1043 & 1040. Type MVSPenB was first introduced in 1937.
Absolute Maximum Operating Conditions¶
Updated December13, 2012. shape:classic construction:pinch type:pentode age:1930.1940 base:b7 heater:4.0v pins:7 pin:1.m pin:2.a pin:3.g3 pin:4.h pin:5.h pin:6.k pin:7.g2 pin:tc.g1