Sensibly equivalent¶ to:
The 6AL5 miniature all glass envelope houses two separate signal diodes.
The two diodes are completely separate flat structures separated by a flat metal screen. This clearly shows the signal usage, where it is important to keep RF isolation.
These diodes were specifically designed for vision and sound detection in television receivers. Additionally they are recommended for limiting and DC restoration.
One diode section seen face on. Note the large size of the envelope in relation to the active sections.
This valve is 18 mm in diameter and 47 mm high excluding the B7G base pins.
References: Datasheet & 1040. Type 6AL5 was first introduced in 1945.
Absolute Maximum Operating Conditions¶
Updated August 08, 2015. shape:thin.glass.tube construction:all.glass type:double.diode age:1940.1950 base:b7g heater:6.3v pins:7 pin:1.k(1) pin:2.a(2) pin:3.h pin:4.h pin:5.k(2) pin:6.s pin:7.a(1)