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832A

Sensibly equivalent to:
C180 CV788 QQE04-20 QQV04-15
    
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The 832A is a VHF transmitting beam tetrode. The American design uses a pair of valve sections within the envelope and required external neutralisation to remain stable, ie not produce parasitic oscillations. The European pattern used a two sided cathode and internal neutralisation. See QQV03-20A.
The National Union logo can clearly be seen as can the ceramic insulators.
A close-up of one of the valve sections.
The wide glass tube envelope is 54 mm in diameter, and excluding the B7A base pins is 57 mm tall.
Reference: Datasheet. Type 832A was first introduced in 1943.

 

Pin Connections
B7A
1
2
3
4
5
6
7
tc
tc
h
g1(2)
g2
k,bp
hct
g1
h
a
a(2)

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
mAg
Pdriv
Pout
Pdiss
freq
f.max
6.3
1.6
500
200
-65
72
14
2.6
0.18W
26
15W
200
250
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 26, 2013.
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