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PCC85

Sensibly equivalent to:
9AQ8
See also:
Valves and their Habits
    
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The PCC85 is a VHF double triode. These were used in band three television tuners as RF amplifiers and oscillators.
The construction is of two pressed metal box anodes separated by space and an electrostatic screen. Within the small box anode cavity is a flat cathode and close spaced grid.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 47 mm tall.
References: Datasheet & 1040. Type PCC85 was first introduced in 1953.

 

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
9.5
0.3
170
-1.5
10
8,000
6.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 22, 2013.
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