Sensibly equivalent¶ to:
The ARP12 is a battery operated variable μ screened pentode. It was used as an RF, IF or even an AF amplifier in portable radio receivers. The commercial equivalent is the VP23.
The AR of the designation shows it as a UK Army Receiving valve, it also indicates that this exhibit predates the introduction of the CV series in 1941. The valve was given a CV number - CV1331.
The classic envelope is 31 mm in diameter and, excluding the MO base pins, is 77 mm tall.
References: Data-sheet & 1043. Type ARP12 was first introduced in 1938.
Absolute Maximum Operating Conditions¶
Updated March 06, 2014. shape:classic construction:pinch type:pentode age:1930.1940 base:mo heater:2.0v pins:8 pin:1.f pin:2.- pin:3.a pin:4.g2 pin:5.g3 pin:6.m pin:7.- pin:8.f pin:tc.g1