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M8162

Sensibly equivalent to:
12AT7WA 6060 CV4024 QA2406
See also:
Pin Compatible Double Triodes - Mullard Special Quality Valves - General Data
    
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The M8162 is a special quality version of the ECC81. It is a VHF double triode, useful for RF stages, oscillators and frequency multipliers, but the construction is slightly different from the standard version in that double micas, or thick mica sheets, are fitted to reduce the effects of vibration.
The anode is made of pressed sheet as normal, the box is closed on all four sides. The anode box is 2 mm deep 5 mm wide and 11 mm high. This is significantly smaller than the commercial ECC81.
The twin triodes with the grids visible through the side of the anode.
The M8162 is identical to the CV4024 and the 12AT7WA as these designations are also on the glass.
The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 46 mm tall.
References: Datasheet & 1040. Type M8162 was first introduced in 1954.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
a(2)
g1(2)
k(2)
h
h
a
g1
k
hct

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
6.3
0.3
170
-1
8.5
11k
5.9
PDF scanned from an original document held by the museum
Updated March 12, 2015.
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