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KT32

Sensibly equivalent to:
25L6G CV1287 CV1502 NR95 VR502
See also:
CV1287 short entry
    
Extras ▼

 

The KT32 was designed as an audio output device in universal sets with a 300 mA heater chain. The 3.5 Watt output was to be had with an anode load of 1,300 Ohms.
The original brand label has been lost.
The base of the anode box showing the rectangular cathode tube with four heater strands within. The control grid supports are copper.
The classic envelope is 45 mm in diameter and, excluding the IO base pins, is 108 mm tall.
References: Datasheet, 1040 & 1043. Type KT32 was first introduced in 1937.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
m
h
a
g2
g1
-
h
k

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
Pout
D
26
0.3
135
135
-7.6
75
5.0
9.0
3.5
11%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 20, 2017.
shape:classic construction:pinch type:beam.tetrode age:1930.1940 base:io heater:300ma pins:8 pin:1.m pin:2.h pin:3.a pin:4.g2 pin:5.g1 pin:6.- pin:7.h pin:8.k
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