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CV525

Sensibly equivalent to:
12A6
See also:
Metal Striptease
    
Extras ▼

 

The CV525 (commercially the 12A6) is metal envelope beam tetrode. This exhibit was sold by Haltron - a wholesaler in the UK.
The CV525/12A6 was designed for use in the single end audio output stages of radio receivers.
The reverse is plain - just black paint to protect the steel from corrosion.
The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 67 mm tall.
References: Data-sheet, 1040 & 1043.

 

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

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
12.6
0.15
250
250
-12.5
30
3.5
70k
3.0
2.4
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 20, 2025.
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