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M8098

Sensibly equivalent to:
CV4048 M8142 QS1212
    
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The M8098 (The UK Government procurement specification is CV4048 - also on the envelope.)is a special quality gas filled voltage stabilise with an output voltage of 85 Volts. The construction is such as to provide resistance to shock and vibration. Normally this requires double mica discs top and bottom as well as rigid construction.
The KB/D identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the D identifies the maker as Mullard Radio Valve Co., Mitcham.
The CV Type designation and the service code for specification and make.
The thin glass tube envelope is 18 mm in diameter and, excluding the base pins, is 46 mm tall.
References: Data-sheet. Type M8098 was first introduced in 1955. See also 1955 adverts.

 

Pin Connections
B7G
1
2
3
4
5
6
7
a
k
nc
k
a
nc
k

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
mAa
-
-
115
10.0
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated May 26, 2025.
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