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PCF80

Sensibly equivalent to:
30C1 8A8 9A8 LZ319 LZ329
See also:
Valves and their Habits
    
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The PCF80 is from the era of VHF Band III television and was made by many companies. The Zaerix brand featured valves made abroad and imported to the UK.
Band III television in the UK began in 1955, up to that date the only program was the one BBC channel. The Band III service was the start of commercial television.
The valve is a triode pentode, with separate cathodes, designed to function as a mixer and oscillator in the tuner.
The article referenced above gives details of the faults and performance of the PCF80.
The standard construction method of three vertical sections. L to R, triode, screen and pentode.
The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is 49 mm tall.
References: Datasheet & 1040. Type PCF80 was first introduced in 1953.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
9
0.3
170
170
-5.5
5.2
1.5
0.87M
2.1

 

Absolute Maximum Operating Conditions
Triode
Va
Vg
mAa
100
-2
14
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 21, 2016.
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