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6AL5

Sensibly equivalent to:
6058 6D2 CV140 CV283 D152 D77 DD6 EAA91 EB91
    
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The 6AL5 miniature all glass envelope houses two separate signal diodes. This exhibit is an import to the UK and the origin is marked as 'foreign'.
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.
The face virw of one diode anode. The two thin sheets that form the anode appear to be held in place by the lugs in the mica sheets. They are not stitched together.
This valve is 18 mm in diameter and 37 mm high excluding the B7G base pins.
References: Datasheet & 1040. Type 6AL5 was first introduced in 1945.

 

Pin Connections
B7G
1
2
3
4
5
6
7
k(1)
a(2)
h
h
k(2)
s
a(1)

 

Absolute Maximum Operating Conditions
Diode
Vh
Ah
Va
mAa
6.3
0.3
150
9
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated August 08, 2015.
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