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VT25

Sensibly equivalent to:
AT35 CV1025 DET25 E1175
See also:
The VT25
    
Extras ▼

 

The VT25 transmitting triode has a large four pin square base. The design is elegant and appears quite delicate as in fact it proved to be in this form.
This exhibit has the original single inverted V thoriated tungsten filament and is thus quite early.
See VT25 for details.
The wide glass tube envelope is 59 mm in diameter and, excluding the L4 base pins, is 160 mm tall.
Reference: Datasheet & 1005.

 

Pin Connections
L4
1
2
3
4
a
f
f
g1

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
7.5
1.9
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 18, 2014.
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