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CV2269

Sensibly equivalent to:
5802 CV495 ME1401 VX8049
    
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The CV2269 sub-miniature wire ended triode was designed to be soldered into the circuit as reliability was deemed to be of the same order as the rest of the components. The anode (pin 2) is marked by a red paint spot.
The CV specification gives the prototypes as the VX8049 and the CV495.
The commercial equivalent is the ME1401 from Mullard. The ME range were all electrometer valves with very high input impedances and operating at very low anode voltages. Their applications were as high impedance amplifiers for instrumentation such as photocell amplifiers and pH meters.
The thin glass tube envelope is 9 mm in diameter, and excluding the lead out wires is 41 mm tall.
References: Datasheet & 4032 Type CV2269 was first introduced in 1961.

 

Pin Connections
B5J/F
1
2
3
4
5
f-
a
f+
-
g1

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
1.25
0.013
25
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 12, 2013.
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