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30FL1

Sensibly equivalent to:
9GB8 LN339 PCE800
See also:
Valves and their Habits - Ediswan First Preference Range Advert - 30FL1 Advert - Aspects of Design 7: Sync Pulse Separation Advert
    
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The 30FL1 is a 1958 television valve in a miniature envelope. The low anode voltages and the 300 mA heater requirement confirm this.
The triode, low power beam tetrode was designed as a general purpose valve. Thanks to Simon Pearson for additional data on the 30FL1 and 30FL2.
The triode on the right.
Face view of triode section.
The view into the open end of the beam tetrode. The control grid is wound on copper and is of a finer pitch than the screen grid.
The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 47 mm tall.
References: Private communication & Datasheet. Type 30FL1 was first introduced in 1958.

 

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

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
9.4
0.3
170
170
-2.1
10
2.5
7.5

 

Absolute Maximum Operating Conditions
Triode
Va
Vg
mAa
ra
gm
200
-7.7
10
5300
3.4
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 01, 2018.
shape:thin.glass.tube construction:all.glass type:triode.beam.tetrode age:1950.1960 base:b9a heater:300ma pins:9 pin:1.a pin:2.g1(t) pin:3.k(t) pin:4.h pin:5.h pin:6.a pin:7.g2 pin:8.g1 pin:9.k.bp.s
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