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Z152

Sensibly equivalent to:
6BW7 6BX6 6F28 8D6 CV1376 EF80 Z719
See also:
The Construction of the EF80 - Television RF Valve Development - Valves and their Habits
    
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The EF80 internally screened pentode was a workhorse of the VHF TV receiver and was introduced in 1950. The Z152 is the same valve but made by another manufacturer.
The internal screen obscures the electrodes.
The thin glass tube envelope is 20 mm diameter and excluding the B9A base pins, is 58 mm tall.
References: Data-sheet & 1040 Type Z152 was first introduced in 1950. See also 1950 adverts.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Va
Vs
Vg
mAa
mAs
ra
gm
170
170
-2
10
2.5
0.4M
7.4
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 07, 2013.
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