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2A7

Sensibly equivalent to:
CV787
See also:
Pentagrid Converters
    
Extras ▼

 

The 2A7 is an American style pentagrid frequency changer. The signal is introduced via the top cap to g4.
The classic envelope is 37 mm in diameter and, excluding the UX7 base pins, is 98 mm tall.
References: Datasheet & 1040. Type 2A7 was first introduced in 1936.

 

Pin Connections
UX7
1
2
3
4
5
6
7
tc
h
a
g3,g5
g2
g1
k
h
g4

 

Absolute Maximum Operating Conditions
Heptode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
2.5
0.8
250
100
-3
3.5
2.2
0.36M
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 21, 2013.
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