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PCF808

Sensibly equivalent to:
30FL14
    
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The PCF808 triode pentode offers high voltage gain in a screened design. It was probably designed for VHF television use.
The Mazda 30FL14 is a direct equivalent.
In this implementation the bright perforated screen encloses the anode as is the case with the Mazda PCF808. In PCF808 the screen is placed between the triode and the pentode but does not go all the way round the anode. Thus the anode is visible.
The triode on the right.
Face view of the triode with the bright electrostatic screen behind and copper supports for the control grid.
The perforated screen around the pentode section.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall.
Reference: 1040.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
7.4
0.3
160
160
-1.7
12
4
0.4M
14.5
Updated November 12, 2018.
shape:thin.glass.tube construction:all.glass type:triode.pentode age:1950.1960 base:b9a heater:300ma pins:9 pin:1.a(t) pin:2.g2 pin:3.a pin:4.h pin:5.h pin:6.k.g3.s pin:7.g1 pin:8.k(t) pin:9.g1(t)
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