Sensibly equivalent¶ to:
7EK7 B349 PCC805
The 30L15 is a low impedance high gain double triode. The low voltage high current suggests a low noise design. The 30L15 was designed for cascode RF amplifier use in the front end stage of VHF television tuners.
Both triodes are surrounded by a screen and also separated by a centre screen.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall.
References: Data-sheet & 1040. Type 30L15 was first introduced in 1960.
Absolute Maximum Operating Conditions¶
Updated May 23, 2020. shape:thin.glass.tube construction:all.glass type:double.triode age:1950.1960 base:b9a heater:300ma pins:9 pin:1.k pin:2.g1s pin:3.a pin:4.h pin:5.h pin:6.g1 pin:7.kin pin:8.kout pin:9.a