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PCF801

Sensibly equivalent to:
8GJ7
See also:
Valves and their Habits - PCF801 - Valves for Dual Standard TVs Advert - PC900 & PCF801 Advert - PCF801 & AW59-91 Advert
    
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The PCF801 is a television mixer oscillator. Triode pentode combinations worked better at high frequencies than hexode mixers.
Mullard describe the PCF801 as: a triode frame-grid variable-μ pentode.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins, is 41 mm tall.
Reference: Datasheet. Type PCF801 was first introduced in 1963.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
8.5
0.3
175
120
-1.4
10
3.0
0.35M
5.0

 

Absolute Maximum Operating Conditions
Triode
Va
mAa
60
12
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated September 08, 2016.
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