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EL33


HMS Collingwood
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Sensibly equivalent to:- 6AG6G - CV2938 - KT61 - BVA264 - BVA265 - 6M6G - BVA266 - BVA267 - N147 - PP6BG
 
 
 
This exhibit was last updated on 19 February 2013
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The EL33 audio output valve is the little brother of the EL37 with which it shares pin connections. Mullard describe this valve as a high sensitivity output pentode for use in AC mains equipment. The EL33 could be used in push pull to deliver 8 Watts, but the normal use was in domestic radio receivers as a single ended stage.
The classic envelope is 42 mm in diameter and, excluding the IO base pins, is 104 mm tall.
References: Datasheet, 1040 & 1043. Type EL33 was first introduced in 1938.
 
Pin Connections
IO
1
2
3
4
5
6
7
8
m
h
a
g2
g1
-
h
k
 
Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
6.3
0.9
250
250
-6
36
4
50,000
9
4.5
10%

Thanks to Frank Philipse for supplying the above PDF datasheet