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CV1288

Sensibly equivalent to:
4304CB 8019 CV315 CV1062 CV1235 D6006 DET12 NT58 POVT121A TSW50 TY1-50 VT62
    
Extras ▼

 

The CV1288 is an M-OV DET12 as can be seen by the dual identification on the envelope. The pre CV designations were the Navy NT58 and the GPO POVT121A.
The DET12 is a VHF transmitting triode with an anode dissipation of 50 Watts.
Both the control grid and anode are taken to top pins. The length of connecting wire between the grid and the outside world is shorter than if the grid went to a base pin and this is important when higher frequencies are involved.
The anode is graphite and the filament, like the grid, is helical.
The pinch and lower filament connection. The grid is supported from above.
A closer view.
The balloon envelope is 64 mm in diameter, and excluding the B4 base pins is 152 mm tall.
References: Datasheet, 1005 & 4001.

 

Pin Connections
B4
1
2
3
4
tc
tc
-
f
f
-
g1
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
Pdiss
Pdriv
Pout
freq
f.max
7.5
3.2
1000
-170
100
50w
6w
70W
100 MHz
300 MHz
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 02, 2015.
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