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NGT7

Sensibly equivalent to:
21N13 CV1147
    
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The NGT7 is the UK Navy specification for this mercury vapour thyratron. The design use is for welding and/or motor control.
The cathode is indirectly heated and oxide coated.
The anode is within the visible outer cylinder that is attached to a collar around the pinch stem.
The balloon envelope is 80 mm in diameter and, excluding the UX4 base pins, is 165 mm tall.
References: Data-sheet.

 

Pin Connections
UX4
1
2
3
4
tc
h
h,k
g1
h.k
a

 

Absolute Maximum Operating Conditions
The Thyratron
Vh
Ah
Va
5.0
5.0
1,500
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 08, 2025.
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