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CV3930

Sensibly equivalent to:
5718 EC71
    
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The CV3930 is a special quality miniature triode for use as an oscillator at UHf frequencies up to 500 MHz.
The valve also carries the commercial Type designation of 5718 showing equivalence.
The tiny electrode assembly within the small glass envelope. The heater and cathode are on the left connected to copper extensions of the lead-out wires. The open centre reveals the grid winding as it passes over the oxide coated cathode.
The thin glass tube envelope is 10 mm in diameter, and excluding the B8D/F base wires is 34 mm tall.
Reference: Datasheet. Type CV3930 was first introduced in 1957.

 

Pin Connections
B8D & B8D/F
1
2
3
4
5
6
7
8
g1
-
h
-
k
h
-
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
μ
6.3
0.15
100
-1.3
8.5
4,700
5.8
27
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December20, 2016.
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