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OM6

Sensibly equivalent to:
ARP34 CV1053 EF39 VR53 W147
    
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The OM6 is a screened variable μ pentode designed for radio receiver use. The frequency range of operation would be up to 30 MHz and it was used as an IF or RF amplifier with the gain controlled by the AGC voltage.
The OM6 is directly equal to the Mullard EF39.
The reverse is plain zinc loaded screening paint.
The classic envelope is 32 mm in diameter and excluding the IO base pins it is 85 mm long.
References: Data-sheet, 1040 & 1043. Type OM6 was first introduced in 1940. See also 1940 adverts.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
g2
g3
nc
h
k
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.2
250
250
-2.5
6
1.7
1.5M
2.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 07, 2024.
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