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KT45

Sensibly equivalent to:
CV1825
See also:
Olympia Show 1947
    
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The KT45 is rated as an audio output device with over 7 Watts output from a single stage. But the peak anode voltage is rated at 8,000 Volts. This clearly marks it out for duty as a line output stage in television type applications and indeed this was its intended use. The maximum anode dissipation is 21.5 Watts.
The KT45 appears to be a re-issue of the pre-war KT44 and has identical ratings.
The classic envelope is 53 mm in diameter and, excluding the B7 base pins, is 127 mm tall.
References: 1043. Type KT45 was first introduced in 1947.

 

Pin Connections
B7
1
2
3
4
5
6
7
tc
-
g1
s
h
h
k
g2
a

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
Pout
D
4.0
2.0
300
300
-15
85
6.3
6.3
7.25
9%
Updated December14, 2012.
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