▼ Menu

VR53

Sensibly equivalent to:
ARP34 CV1053 EF39 OM6
    
Extras ▼

 

The VR53 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 probably used as an IF amplifier. The commercial equivalent is the EF39.
The VR in the designation designates this as a pre-WWII Royal Air Force receiving valve.
This is another example of this type that we have in the collection, and in this case it is encased in the classic shape of glass envelope.
The classic envelope is 29 mm in diameter and, excluding the IO base pins, is 83 mm long.
References: Datasheet, 1040 & 1043. Type VR53 was first introduced in 1940.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
g2
g3
-
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 29, 2013.
Return to Main Index