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PCC189

Sensibly equivalent to:
7ES8
See also:
Valves and their Habits - Frame Grid Valves
    
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The PCC189 is a low impedance high gain double triode for use as a cascode amplifier in television front-ends. It specifically states that it is built with frame grids. The valves are variable μ types for use at RF as AGC controlled devices. The low voltage high current indicates a low noise design.
The PCC88 has the same base and heater but is a sharp cut-off design.
A UK product and a view of one anode.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall.
References: Datasheet & 1040. Type PCC189 was first introduced in 1960.

 

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

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
7.6
0.3
90
-1.4
15
2500
12.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 17, 2014.
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