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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.
This is another 30FL1 in the collection, a generic product without branding.
The triode can be clearly seen on the left. The screen is next with the beam tetrode at right angles to the triode.
The triode face view. The grid supports are copper and extend beyond the anode for increased radiation area.
The beam tetrode anode is reduced to a thin strap away from the operating face.
The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 45 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
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 October 01, 2016.
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