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EF89

Sensibly equivalent to:
6DA6 CV5156
See also:
EF89 & UF89 Advert.
    
Extras ▼

 

The EF89 is a miniature RF variable μ voltage amplifier pentode for use as an RF or IF amplifier in FM/AM receivers and is designed to work with a tuned anode circuit.
The only visible part of the valve is the expanded metal screening cylinder.
The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is 54 mm tall.
References: Datasheet & 1040. Type EF89 was first introduced in 1955.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
s
g1
k
h
h
s
a
g2
g3

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.2
250
100
-2
9
3
1M
3.6
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 07, 2016.
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